A261313 - OEIS

%I #22 Feb 24 2021 02:48:19

%S 9,0,2,6,1,1,6,5,6,9,0,6,2,4,4,2,7,1,7,9,2,8,0,2,6,8,4,5,6,0,8,0,0,2,

%T 4,7,0,2,0,4,0,8,2,7,6,6,5,9,9,1,6,6,0,7,9,5,1,8,2,5,8,6,7,3,9,6,6,6,

%U 2,1,5,2,5,0,4,4,3,3,8,5,2,7,6,6,3,8,3

%N Decimal expansion of the lower limit of A147562(i)/i^2.

%C Evidently twice the lower limit of A139250(n)/n^2 and thus twice A195853.

%D 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

%H David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="/A000695/a000695_1.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>, 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 <a href="http://arxiv.org/abs/1004.3036">arXiv:1004.3036v2</a>, [math.CO], 2010.

%H Steven R. Finch, <a href="/A139250/a139250_1.pdf">Toothpicks and Live Cells</a>, July 21, 2015. [Cached copy, with permission of the author]

%H N. J. A. Sloane, <a href="/wiki/Catalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>

%e 0.90261165..

%Y Cf. A139250, A170927, A147562, A195853, A260239.

%K nonn,cons

%O 0,1

%A _Robert Price_, Aug 14 2015

%E Name and first 10 terms suggested by _Steven Finch_, Jul 21 2015