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A259104
A000522(n+2)-A000522(n).
0
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
J. L. Adams, Conceptual Blockbusting: A Guide to Better Ideas, Freeman, San Francisco, 1974. [Annotated scans of pages 69 and 70 only]
CROSSREFS
Sequence in context: A307399 A307411 A349018 * A082033 A009339 A050912
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 23 2015
STATUS
approved