A160715 Y-toothpick sequence (as A160120) but without internal propagation in the structure.

0, 1, 4, 7, 16, 19, 28, 37, 58, 61, 70, 79, 100, 115, 136, 163, 214, 217, 226, 235, 256, 271, 292, 319, 370, 391, 412, 439, 490, 541, 598, 667, 784, 787

Offset

0,3

Comments

Note that A160120(9)=67 but in this sequence a(9)=61.

See the entry A160120 for more information about the Y-toothpick sequences.

Links

Table of n, a(n) for n=0..33.

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

Cf. A000079, A000225, A006516, A139250, A160120, A151710.

Sequence in context: A350961 A166700 A266532 * A160120 A130665 A236305

Adjacent sequences: A160712 A160713 A160714 * A160716 A160717 A160718

Keyword

more,nonn

Author

Omar E. Pol, Jun 02 2009

Extensions

More terms from Omar E. Pol, May 29 2010

Status

approved