A170882 First differences of "corner" sequence associated with A161644 and A161645.

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

Offset: 0

Author

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

Keywords

• nonn

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.