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A038709 Floor(n*(n+1/2)/4). 0
0, 0, 1, 2, 4, 6, 9, 13, 17, 21, 26, 31, 37, 43, 50, 58, 66, 74, 83, 92, 102, 112, 123, 135, 147, 159, 172, 185, 199, 213, 228, 244, 260, 276, 293, 310, 328, 346, 365, 385, 405, 425, 446, 467, 489, 511, 534, 558, 582, 606, 631, 656, 682, 708, 735 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

LINKS

Index entries for sequences related to Beatty sequences

CROSSREFS

Sequence in context: A005779 A098387 A135072 * A186351 A049981 A194178

Adjacent sequences:  A038706 A038707 A038708 * A038710 A038711 A038712

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), May 02 2000

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Last modified February 15 19:09 EST 2012. Contains 205852 sequences.