A259104 A000522(n+2)-A000522(n).

4, 14, 60, 310, 1892, 13374, 107644, 972710, 9754500, 107518702, 1292197244, 16818292374, 235673103460, 3537700674590, 56637064388412, 963304044932614, 17346582063731204, 329698807289999310, 6595909863144795580, 138548914038247276022, 3048737440173364880484

Offset

0,1

Links

Table of n, a(n) for n=0..20.

J. L. Adams, Conceptual Blockbusting: A Guide to Better Ideas, Freeman, San Francisco, 1974. [Annotated scans of pages 69 and 70 only]

Crossrefs

Cf. A000522, A001339.

Sequence in context: A307399 A307411 A349018 * A082033 A009339 A050912

Adjacent sequences: A259101 A259102 A259103 * A259105 A259106 A259107

Keyword

nonn

Author

N. J. A. Sloane, Jun 23 2015

Status

approved