A152768 Records in A139251.

1, 2, 4, 8, 12, 16, 28, 32, 36, 40, 60, 88, 92, 112, 140, 208, 256, 260, 296, 364, 488, 672, 704, 708, 744, 956, 1216, 1648, 2048, 2052, 2096, 2108, 2396, 3128, 4080, 5344, 5952, 5956, 6000, 6300, 7920, 10336, 13504, 16640, 16644, 16688, 16696, 16988, 17100, 18612, 20040

Offset: 1

Author

Omar E. Pol, Dec 15 2008, Dec 20 2008

Keywords

• nonn

Comments

Excluding the initial 1 and 2, this sequence also gives the records in A147646. - Nathaniel Johnston, Apr 10 2011

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. A139251, A139252, A139560. Toothpick sequence: A139250.

Cf. A052184.

Extensions

a(18) - a(51) from Nathaniel Johnston, Apr 10 2011