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

1,2

Comments

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

Links

Table of n, a(n) for n=1..51.

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.

Sequence in context: A360641 A326807 A052184 * A266047 A324214 A371732

Adjacent sequences: A152765 A152766 A152767 * A152769 A152770 A152771

Keyword

nonn

Author

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

Extensions

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

Status

approved