A173454 a(n) = A139250(n) - A173522(n).
0, 0, -1, -1, -3, -5, -3, 1, -3, -9, -7, -3, -3, 1, 17, 33, 25, 11, 13, 17, 17, 21, 37, 53, 49, 45, 61, 81, 97, 133, 197, 245, 229, 199, 201, 205, 205, 209, 225, 241, 237, 233, 249, 269, 285, 321, 385, 433, 421, 401, 417, 437, 453, 489
Offset: 0
Keywords
Links
- Shawn A. Broyles, Table of n, a(n) for n = 0..10000
- 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
Extensions
Edited by Omar E. Pol, May 30 2010
More terms from R. J. Mathar, Aug 31 2010