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A082643 Ceiling(n*(n+1/2)/2). 0
0, 1, 3, 6, 9, 14, 20, 27, 34, 43, 53, 64, 75, 88, 102, 117, 132, 149, 167, 186, 205, 226, 248, 271, 294, 319, 345, 372, 399, 428, 458, 489, 520, 553, 587, 622, 657, 694, 732, 771, 810, 851, 893, 936, 979, 1024, 1070, 1117, 1164, 1213, 1263, 1314, 1365, 1418, 1472, 1527 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

CROSSREFS

Sequence in context: A134031 A130473 A184015 * A135524 A083853 A058597

Adjacent sequences:  A082640 A082641 A082642 * A082644 A082645 A082646

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), May 16 2003

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Last modified February 16 01:31 EST 2012. Contains 205860 sequences.