A156168 A bisection of A002437.

1, 305, 6815585, 1077270776465, 626055764653322945, 968553361387420436695025, 3286322019402928956112227932705, 21485762937086358457367440231243675985, 246710262382186399710713892753099905250964865, 4640407584638100957359112105517273132340130164039345

Offset

0,2

Links

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

Crossrefs

Sequence in context: A350397 A247344 A220601 * A005951 A294596 A294710

Adjacent sequences: A156165 A156166 A156167 * A156169 A156170 A156171

Keyword

nonn

Author

N. J. A. Sloane, Nov 06 2009

Status

approved