A159799 First differences of A159789.

0, 1, 1, 0, 1, 5, 4, 0, 1, 3, 2, 1, 7, 18, 12, 0, 1, 3, 2, 1, 7, 14, 8, 1, 5, 8, 5, 9, 32, 64, 24, 0, 1, 3, 2, 1, 7, 14, 8, 1, 5, 8, 5, 9, 32, 48, 24, 1, 5

Offset

1,6

Links

Table of n, a(n) for n=1..49.

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

Formula

a(n) = A159796(n+1)/4.

Crossrefs

Cf. A139250, A153000, A159786, A159789, A159796.

Sequence in context: A343958 A258234 A336075 * A185579 A197134 A049470

Adjacent sequences: A159796 A159797 A159798 * A159800 A159801 A159802

Keyword

more,nonn

Author

Omar E. Pol, Jun 13 2009

Extensions

More terms from Colin Barker, Apr 19 2015

Status

approved