A230978 a(n) = (A220500(n) - 1)/2.

0, 2, 6, 14, 25, 37, 49, 67, 87, 103, 125, 157, 204, 240, 268, 306, 342, 358, 382, 422, 478, 548, 618, 688, 772, 832, 898, 982, 1101, 1185, 1245, 1323, 1391, 1407, 1431, 1471, 1527, 1597, 1669, 1751, 1863, 1971, 2099, 2235, 2419, 2581, 2739, 2879, 3027, 3107, 3182, 3298, 3458, 3660, 3876, 4080

Offset: 1

Author

Omar E. Pol, Nov 30 2013

Keywords

• nonn

Links

• N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS.
• Index entries for sequences related to toothpick sequences.

Crossrefs

Cf. A139250, A220500, A220520, A220522, A220526.

Extensions

More terms added using the data at A220500 by Amiram Eldar, May 06 2024