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A057587 Nonnegative numbers of form n*(n^2+-1)/2. 2
0, 1, 3, 5, 12, 15, 30, 34, 60, 65, 105, 111, 168, 175, 252, 260, 360, 369, 495, 505, 660, 671, 858, 870, 1092, 1105, 1365, 1379, 1680, 1695, 2040, 2056, 2448, 2465, 2907, 2925, 3420, 3439, 3990, 4010, 4620, 4641, 5313, 5335, 6072, 6095 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

Taking alternate terms gives A027480 and A006003. - Jeremy Gardiner (jeremy.gardiner(AT)btinternet.com), Apr 10 2005

CROSSREFS

Cf. A027480, A006003.

Sequence in context: A037221 A080560 A151866 * A032438 A025083 A203150

Adjacent sequences:  A057584 A057585 A057586 * A057588 A057589 A057590

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Oct 05 2000

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Last modified February 17 22:48 EST 2012. Contains 206085 sequences.