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A256055
A256056(n)/2.
1
-1, 2, 3, 5, 10, 15, 21, 34, 48, 65, 94, 129, 175, 237, 312, 413, 545, 705, 907, 1169, 1491, 1887, 2387, 2997, 3747, 4674, 5793, 7160, 8827, 10827, 13244, 16167, 19662, 23840, 28844, 34800, 41880, 50298
OFFSET
0,2
LINKS
Miranda C. N. Cheng, John F. R. Duncan, Jeffrey A. Harvey, Umbral Moonshine, arXiv:1204.2779v3.pdf, Oct 13 2013.
CROSSREFS
Cf. A256056.
Sequence in context: A093832 A050947 A037387 * A043826 A043829 A043833
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Mar 25 2015
STATUS
approved