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A182842 a(n) = A182841(n+2)/2.

%I A182842 #43 Feb 24 2021 02:48:19
%S A182842 2,4,7,8,7,12,19,16,7,12,23,32,27,28,43,32,7,12,23,32,31,40,63,72,43,
%T A182842 28,55,84,79,72,99,64,7,12,23,32,31,40,63,72,47,40,71,112,119,112,143,
%U A182842 152,75,28,55,84,91,108,163,204,151,88,131,204,207,180,219,128
%N A182842 a(n) = A182841(n+2)/2.
%H A182842 Olaf Voß, <a href="/A182842/b182842.txt">Table of n, a(n) for n = 0..998</a>
%H A182842 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 A182842 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>
%H A182842 Olaf Voß, <a href="/wiki/Toothpick_structures_on_hexagonal_net">Toothpick structures on hexagonal net</a>
%H A182842 <a href="/index/To#toothpick">Index entries for sequences related to toothpick sequences</a>
%e A182842 From _Omar E. Pol_, Nov 01 2014: (Start)
%e A182842 When written as an irregular triangle with row lengths A011782:
%e A182842 2;
%e A182842 4;
%e A182842 7, 8;
%e A182842 7, 12, 19, 16;
%e A182842 7, 12, 23, 32, 27, 28, 43, 32;
%e A182842 7, 12, 23, 32, 31, 40, 63, 72, 43, 28, 55, 84, 79, 72, 99, 64;
%e A182842 7, 12, 23, 32, 31, 40, 63, 72, 47, 40, 71, 112, 119, 112, 143, 152, 75, 28, 55, 84, 91, 108, 163, 204, 151, 88, 131, 204, 207, 180, 219, 128;
%e A182842 The right border gives the even powers of 2, at least up a(2^9-1).
%e A182842 (End)
%Y A182842 Cf. A139250, A139251, A151724, A182633, A182840, A182841.
%K A182842 nonn,tabf
%O A182842 0,1
%A A182842 _Omar E. Pol_, Dec 11 2010
%E A182842 More terms from _Olaf Voß_, Dec 24 2010
%E A182842 Wiki link added by _Olaf Voß_, Jan 14 2011