A160163 First differences of A160162.
1, 1, 2, 4, 4, 2, 4, 6, 4, 4, 8, 12, 10, 6, 10, 10, 4, 4, 8, 12, 10, 8, 14, 16, 12, 16, 28, 34, 26, 20, 26, 18, 4, 4, 8, 12, 10, 8, 14, 16, 12, 16, 28, 34, 26, 22, 30, 24, 12, 16, 28, 34, 28, 30, 44, 44
Offset: 1
Keywords
Links
- 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
Formula
a(n) = A160159(n)/2.
Extensions
More terms from Colin Barker, Apr 19 2015