%I #6 Feb 24 2021 02:48:19

%S 0,4,24,16,96,16,80,48,336,16,80,48,304,48,240,144,1104,16,80,48,304,

%T 48,240,144,1040,48,240,144,912,144,720,432,3504,16,80,48,304,48,240,

%U 144,1040,48,240,144,912,144,720,432,3376,48,240,144,912,144,720,432,3120,144,720

%N A169648(4n+4) - A147582(4n+5).

%C A169648 and A147582 agree except at these terms.

%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 For recurrence see A169689.

%Y Cf. A147582, A169648, A169689.

%K nonn

%O -1,2

%A _N. J. A. Sloane_, Apr 14 2010