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A170882 First differences of "corner" sequence associated with A161644 and A161645. 2
0, 1, 2, 4, 5, 5, 7, 11, 11, 7, 7, 13, 19, 19, 19, 25, 23, 11, 7, 13, 19, 21, 25, 37, 45, 35, 23, 31, 49, 53, 51, 59, 49, 19, 7, 13, 19, 21, 25, 37, 45, 37, 29, 41, 65, 77, 77, 89, 97, 67, 31, 31, 49, 59, 69, 97, 125, 111, 75, 79, 119, 135, 129, 135, 103, 35, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

David Applegate and N. J. A. Sloane, Table of n, a(n) for n = 0..1000

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

David Applegate, The movie version of A139250, etc. [See A161644, corner version.]

CROSSREFS

Cf. A139250, A161644, A161645, A170883.

Sequence in context: A140202 A307230 A026404 * A116680 A138083 A181524

Adjacent sequences:  A170879 A170880 A170881 * A170883 A170884 A170885

KEYWORD

nonn

AUTHOR

David Applegate and N. J. A. Sloane, Jan 08 2010

STATUS

approved

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Last modified November 13 04:20 EST 2019. Contains 329085 sequences. (Running on oeis4.)