|
%I #11 Feb 24 2021 02:48:18
%S 1,4,4,10,4,10,10,22,4,10,10,22,10,22,22,46,4,10,10,22,10,22,22,46,10,
%T 22,22,46,22,46,46,94,4,10,10,22,10,22,22,46,10,22,22,46,22,46,46,94,
%U 10,22,22,46,22,46,46,94,22,46,46,94,46,94,94,190
%N First differences of A160722.
%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.]
%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>
%F a(n) = 3*A001316(n-1) - 2
%Y Cf. A139250, A139251, A160720, A160721, A160722.
%K nonn
%O 1,2
%A _Omar E. Pol_, May 25 2009
%E Formula and more terms from _Max Alekseyev_, Sep 08 2011
|
