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1, 2, 8, 27, 79, 209, 512, 1183, 2604, 5504, 11240, 22277, 43003, 81098, 149769, 271404, 483439, 847681, 1464999, 2498258, 4207764, 7005688, 11538936, 18814423, 30387207, 48641220, 77205488, 121567834, 189974638, 294742961, 454164484
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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MAPLE
| 1, seq(coeff(convert(series(add(-(-1)^k*x^(k*(k+1)/2), k=1..100)/(mul(1-x^k, k=1..100))^2, x, 100), polynom), x, 2*n), n=1..45); (C. Ronaldo)
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CROSSREFS
| Sequence in context: A087241 A184628 A092071 * A102759 A076884 A138388
Adjacent sequences: A100502 A100503 A100504 * A100506 A100507 A100508
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Nov 24 2004
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EXTENSIONS
| More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 19 2005
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