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A039823 Ceiling[ (n^2+n+2)/4 ]. +0
1
1, 2, 4, 6, 8, 11, 15, 19, 23, 28, 34, 40, 46, 53, 61, 69, 77, 86, 96, 106, 116, 127, 139, 151, 163, 176, 190, 204, 218, 233, 249, 265, 281, 298, 316, 334, 352, 371, 391, 411, 431, 452, 474, 496, 518, 541, 565, 589, 613, 638, 664, 690, 716, 743, 771, 799, 827 (list; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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