A151886 Number of toothpicks turned ON at generation n in A151885.
0, 1, 2, 4, 6, 4, 10, 12, 22, 4, 10, 20, 30, 12, 34, 44, 78, 4, 10, 20, 30, 20, 50, 60, 110, 12, 34, 68, 102, 44, 122, 156, 278, 4, 10, 20, 30, 20, 50, 60, 110, 20, 50, 100, 150, 60, 170, 220, 390, 12, 34, 68, 102, 68, 170
Offset: 0
Keywords
Links
- Nathaniel Johnston, Table of n, a(n) for n = 0..926
- 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
- N. J. A. Sloane, Illustration of first 8 generations
Extensions
Terms after a(8) from Nathaniel Johnston, Apr 02 2011