A156175 A bisection of A002439.

1, 1681, 67637281, 15442193173681, 11735529528739490881, 22427641105413135505628881, 90592214447886493688036507587681, 687051872949101429716075902637226327281, 8977220765593827294384825469501847565263767681, 189320918307961834904462117789058282666933576006788881

Offset

0,2

Links

Table of n, a(n) for n=0..9.

Crossrefs

Sequence in context: A189654 A163009 A069331 * A031760 A204568 A035766

Adjacent sequences: A156172 A156173 A156174 * A156176 A156177 A156178

Keyword

nonn

Author

N. J. A. Sloane, Nov 07 2009

Status

approved