A253077 Bisection of A136704 (divided by 2).

0, 1, 6, 39, 273, 2013, 15330, 119572, 949560, 7646457, 62263994, 511647711, 4236443046, 35303691969, 295820592090, 2490618533403, 21057047599918, 178684089639276, 1521229411793910, 12988958823773660, 111198159686496300, 954235370332956621, 8206424184863387028

Offset: 1

Author

N. J. A. Sloane, Feb 01 2015

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A136704, A253076.

Extensions

Offset corrected and more terms added by Amiram Eldar, May 08 2024