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A152768 Records in A139251. 3
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 (list; graph; refs; listen; history; text; internal format)
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: A170892 A246468 A052184 * A266047 A273109 A046843

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

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Last modified January 20 16:38 EST 2019. Contains 319335 sequences. (Running on oeis4.)