A172306 a(n) = A172304(n)/2.

0, 1, 3, 7, 11, 15, 23, 31, 35, 43, 55, 67, 83, 95, 119, 139, 151, 159, 171, 191, 215, 235, 263, 291, 323, 355, 391, 419, 451, 475, 515, 559, 575, 591, 623, 659, 691, 711, 743, 783, 831, 883, 955, 1003, 1067, 1127, 1207, 1263, 1311, 1351, 1415, 1479, 1551, 1595, 1663, 1727, 1795, 1867, 1951, 2035, 2143, 2223, 2319, 2403, 2435, 2475, 2539, 2587

Offset

0,3

Links

Robert Price, Table of n, a(n) for n = 0..202

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. A139250, A172304, A172305, A172307, A172308, A172309, A172310, A172311, A172312, A172313.

Sequence in context: A036994 A243115 A279106 * A309274 A112714 A327330

Adjacent sequences: A172303 A172304 A172305 * A172307 A172308 A172309

Keyword

nonn

Author

Omar E. Pol, Feb 06 2010

Extensions

a(14)-a(67) from Robert Price, Jun 17 2019

Status

approved