A170847 G.f.: Product_{k>=0} (1 + 3x^(2^k-1) + 2x^(2^k)).

4, 14, 14, 16, 50, 70, 40, 20, 50, 70, 76, 182, 310, 260, 104, 28, 50, 70, 76, 182, 310, 260, 140, 190, 310, 368, 698, 1294, 1400, 832, 256, 44, 50, 70, 76, 182, 310, 260, 140, 190, 310, 368, 698, 1294, 1400, 832, 292, 206, 310, 368, 698, 1294, 1400, 940, 850, 1310, 1724

Offset

0,1

Links

Table of n, a(n) for n=0..56.

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.]

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

Crossrefs

Sequence in context: A202731 A098363 A276703 * A168420 A189814 A200553

Adjacent sequences: A170844 A170845 A170846 * A170848 A170849 A170850

Keyword

nonn

Author

N. J. A. Sloane, Jan 02 2010

Status

approved