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

Author

Omar E. Pol, Jun 02 2009

Keywords

• more
• nonn

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

• 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.

Extensions

More terms from Omar E. Pol, May 29 2010