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A216956 Triangle read by rows: A216955/2. 2
1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 6, 6, 2, 1, 1, 10, 13, 5, 2, 1, 1, 20, 26, 10, 4, 2, 1, 1, 37, 55, 19, 9, 4, 2, 1, 1, 74, 107, 41, 18, 8, 4, 2, 1, 1, 143, 219, 82, 35, 17, 8, 4, 2, 1, 1, 286, 438, 164, 70, 34, 16, 8, 4, 2, 1, 1, 562, 881, 330, 143, 67, 33, 16, 8, 4, 2, 1, 1, 1124, 1762, 660, 286, 134, 66, 32, 16, 8, 4, 2, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,4
COMMENTS
It appears that reversed rows converge to A011782. - Omar E. Pol, Nov 20 2012
LINKS
B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, On Curling Numbers of Integer Sequences, arXiv:1212.6102, Dec 25 2012.
B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, On Curling Numbers of Integer Sequences, Journal of Integer Sequences, Vol. 16 (2013), Article 13.4.3.
EXAMPLE
Triangle begins:
1,
1, 1,
2, 1, 1,
3, 3, 1, 1,
6, 6, 2, 1, 1,
10, 13, 5, 2, 1, 1,
20, 26, 10, 4, 2, 1, 1,
37, 55, 19, 9, 4, 2, 1, 1,
74, 107, 41, 18, 8, 4, 2, 1, 1,
...
CROSSREFS
First column is A093371.
Cf. A216955.
Sequence in context: A296373 A345710 A088326 * A285522 A181039 A215297
KEYWORD
nonn,tabl
AUTHOR
N. J. A. Sloane, Sep 26 2012
STATUS
approved

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Last modified March 29 09:32 EDT 2024. Contains 371268 sequences. (Running on oeis4.)