A175098 Number of lattice points covered at the n-th stage of the leftist toothpicks A151566

0, 3, 5, 9, 12, 16, 20, 26, 31, 35, 39, 45, 51, 59, 67, 79, 88, 92, 96, 102, 108, 116, 124, 136, 146, 154, 162, 174, 186, 202, 218, 242, 259, 263, 267, 273, 279, 287, 295, 307, 317, 325, 333, 345, 357, 373, 389, 413, 431, 439, 447, 459, 471, 487, 503, 527, 547

Offset

0,2

Links

Table of n, a(n) for n=0..56.

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

Crossrefs

Cf. A147614.

Sequence in context: A375649 A243205 A259368 * A351389 A242067 A127722

Adjacent sequences: A175095 A175096 A175097 * A175099 A175100 A175101

Keyword

nonn

Author

R. J. Mathar, Feb 04 2010

Status

approved