A200903 A182589(n)/8.

1, 3, 27, 297, 47709, 645435, 126324495, 1808414181, 382438918233, 1242372315626955, 18595508156138529, 63815763282950874195, 14742997800191813247975, 224916431556261219090813, 52678299544059483705751857, 191343486826902593656102628835

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Crossrefs

Sequence in context: A204821 A365156 A372203 * A365149 A318108 A290576

Adjacent sequences: A200900 A200901 A200902 * A200904 A200905 A200906

Keyword

nonn

Author

N. J. A. Sloane, Nov 23 2011

Status

approved