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User:Charles R Greathouse IV/Sequences
This page is concerned with the sequences I have submitted to the OEIS.
Division
The categories I use are quite arbitrary and have fuzzy boundaries. I provide them for informational purposes only, mostly to myself.
Literature-based sequences are ones which I wrote mostly to record a result from the mathematical literature. Literature-inspired sequences are similar, but the sequence of function is only implicit in the source. Transformations or modifications are transformations of or changes to existing sequences, because a variant is interesting, likely to be searched, or to 'fix' a version which should have been presented differently in my view. Historical sequences are those which might not have been of interest on their own (though they may!), except that they have historic interest. I term interdisciplinary those sequences which, properly, belong to some field outside of math like quantum physics, chemistry, or engineering. Simple ideas are sequences which seemed inevitable, but which I happened to enter. Other original ideas include other sequences which I dreamed up. The category of co-authored sequences preempts the others and includes many kinds of collaborations: sequences which I was asked to submit on behalf of another, and for which I developed content; sequences developed jointly for the OEIS; sequences resulting from collaboration outside the OEIS; proposed sequences which I rewrote and added enough information that I was asked to co-author.
2016
2015
I authored 26 sequences in 2015, as follows:
- Literature-based (12): A253280, A254307, A255937, A258042, A259284, A261586, A261593, A261882, A261883, A262406, A263800, A263981
- Literature-inspired (2): A262404, A262405
- Transformations or modifications (2): A257146, A261476
- Historical sequences (2): A262041, A262080
- Other original sequences (4): A253177, A261312, A263924, A265626
- Co-authored sequences (4): A256227, A260986, A261717, A263447
Co-authors: Franklin T. Adams-Watters, Giovanni Resta, Zak Seidov, Sven Simon
2014
I authored 43 sequences in 2014, as follows:
- Literature-based (9): A237517, A237835, A247981, A240370, A237695, A247129, A249776, A240953, A243407
- Transformations or modifications (1): A237836
- Interdisciplinary (3): A245461, A242978, A245494
- Simple ideas (4): A237992, A239437, A245238, A247099
- Other original sequences (9): A237043, A239727, A242445, A238120, A238503, A241482, A246399, A244854, A245456
- Co-authored sequences (17): A239008, A239009, A239010, A239011, A239012, A239013, A239014, A239015, A249714, A249715, A238985, A247562, A236680, A237586*, A237663, A242497, A242876
Co-authors: Sophia Greathouse, R. K. Guy, Antti Karttunen, William J. Keith, Thomas Ordowski, Robert G. Wilson v, Reinhard Zumkeller, and 1 other*
* A237586 was developed with a pseudonymous contributor, see the link in that sequence. By request the contributor has not been further identified.
2013
I authored 63 sequences in 2013, as follows:
- Literature-based (17): A187737, A211167, A213222, A217695, A221281, A221282, A221284, A221285, A221286, A225222, A225574, A226898, A227158, A227730, A227731, A227784, A234614
- Literature-inspired (9): A211411, A221279, A226047, A226191, A227781, A227782, A227783, A232565, A234642
- Transformations or modifications (5): A219361, A226899, A226900, A226901, A233419
- Interdisciplinary (1): A230242
- Simple ideas (4): A221283, A229099, A229483, A233415
- Other original sequences (14): A221280, A225060, A225061, A225561, A226216, A226443, A226690, A226691, A226891, A227533, A227534, A227535, A233445, A233459
- Co-authored sequences (12): A209260, A212312, A220697, A225808, A225819, A226221, A226595, A226596, A227785, A228023, A228024, A228036, A228311*
Co-authors: J. M. Bergot, Underwood Dudley, John F. R. Duncan, Will Gosnell, M. F. Hasler, Robert Israel, L. Edson Jeffery, Giovanni Resta, Balarka Sen, Jonathan Sondow, Jimmy Zotos, and 1 other*
* A228311 was developed with a pseudonymous contributor, see the link in that sequence. By request the contributor has not been further identified.
2012
I authored 72 sequences in 2012, as follows:
- Literature-based (25): A159344, A212296, A212297, A208277, A208575, A208576, A212285, A212286, A212298, A215016, A217973, A212287, A212299, A212300, A217490, A218342, A220218, A198297, A208571, A210570, A212292, A214396, A215722, A220219, A220351
- Literature-inspired (4): A206398, A217031, A210380, A216700
- Transformations or modifications (3): A173601, A212288, A212289
- Historical sequences (1): A202300
- Interdisciplinary (3): A219863, A211074, A214395
- Simple ideas (11): A211073, A215935, A185351, A208436, A211075, A212293, A212294, A216850, A185393, A212290, A212295
- Other original sequences (8): A215013, A219346, A211076, A216480, A185313, A208644, A212291, A216418
- Co-authored sequences (16): A214300, A211072, A218976, A212301, A215014, A218769, A218831, A220268, A220269, A220273, A220274, A220281, A220293, A220462, A220463, A220474, A220475
Co-authors: J. M. Bergot, R. J. Cano, Laurent Desnogues, John F. R. Duncan, Tanya Khovanova, Peter J. C. Moses, Vladimir Shevelev
2011
I authored 56 sequences in 2011, as follows:
- Literature-based (19): A192869, A185086, A192861, A192862, A200810, A192863, A192864, A192868, A200811, A200815, A202750, A164014, A180045, A187094, A192636, A187054, A189408, A192014, A194687
- Literature-inspired (7): A192786, A192787, A192788, A192789, A185389, A185396, A185397
- Transformations or modifications (9): A194945, A195328, A202727, A202728, A199801, A200722, A143813, A190424, A195624
- Interdisciplinary (1): A201488
- Simple ideas (7): A190680, A193615, A190423, A192336, A182986, A194768, A194769
- Other original ideas (7): A194943, A194944, A194946, A195327, A195212, A202463, A188859
- Co-authored sequences (6): A186927, A186928, A191994, A185720, A192438, A202173
Co-authors: Kailasam Viswanathan Iyer, Jonathan Vos Post, P.Venkata Subba Reddy, Vladimir Shevelev, Arkadiusz Wesolowski, Reinhard Zumkeller
2010
I authored 16 sequences in 2010, as follows:
- Literature-based (3): A175348, A175607, A181313
- Simple ideas (4): A173626, A175736, A175737, A175738
- Other original ideas (4): A173419, A175549, A175590, A175763
- Co-authored sequences (5): A164003, A171058, A173821, A173822, A173823
Co-authors: Eric Angelini, Alonso Del Arte, Robert Israel, Sean A. Irvine, N. J. A. Sloane
2009
I authored 3 sequences in 2009, as follows:
* If you count xkcd as "literature".
2008
I authored 4 sequences in 2008, as follows:
- Literature-based (1): A153352
- Transformations or modifications (2): A136402, A142587
- Other original ideas (1): A141768
2006
I authored 2 sequences in 2006, as follows:
2005
I authored 1 sequence in 2005:
- Simple ideas (1): A108797
This was the first sequence I submitted to the OEIS. My first contribution was a year earlier, when I added some terms to A091782.
