A195853 Decimal expansion of the lower limit of A139250(i)/i^2.

4, 5, 1, 3, 0, 5, 8, 2, 8, 4, 5, 3, 1, 2, 2, 1, 3, 5, 8, 9, 6, 4, 0, 1, 3, 4, 2, 2, 8, 0, 4, 0, 0, 1, 2, 3, 5, 1, 0, 2, 0, 4, 1, 3, 8, 3, 2, 9

Offset

0,1

Comments

Constant mentioned in the Applegate-Pol-Sloane article, Section 5, the fractal-like structure. It is also mentioned in A139250 and A170927.

Note that at least there are 162 constants starting with 0.451305 in the Plouffe's Inverter.

Also evidently half the lower limit of A147562(n)/n^2; see A260239. - Steven Finch, Jul 21 2015

References

D. Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, Congressus Numerantium, Vol. 206 (2010), 157-191

Links

Table of n, a(n) for n=0..47.

David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.], which is also available at arXiv:1004.3036v2, [math.CO], 2010.

Steven R. Finch, Toothpicks and Live Cells, July 21, 2015. [Cached copy, with permission of the author]

N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

Example

0.451305...

Crossrefs

Cf. A139250, A170927, A147562, A260239.

Sequence in context: A046576 A016493 A101626 * A070769 A021693 A188944

Adjacent sequences: A195850 A195851 A195852 * A195854 A195855 A195856

Keyword

nonn,cons,hard,more

Author

Omar E. Pol, Sep 27 2011

Extensions

a(6)-a(14) from Robert Price, Aug 18 2012

a(15)-a(47) from Robert Price, Aug 16 2015

Removed first fifteen terms as they were duplicated in the last edit by Robert Price, Dec 17 2018

Status

approved