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0, 1, 2, 4, 6, 8, 11, 14, 17, 21, 25, 29, 34, 39, 44, 50, 56, 62, 69, 76, 83, 91, 99, 107, 116, 125, 134, 144, 154, 164, 175, 186, 197, 209, 221, 233, 246, 259, 272, 286, 300, 314, 329, 344, 359, 375, 391, 407, 424, 441, 458, 476, 494, 512, 531, 550, 569, 589, 609, 629, 650, 671, 692
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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2,3
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COMMENTS
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LINKS
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FORMULA
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G.f.: x^3*(-1-x^2+x^3) / ( (1+x+x^2)*(x-1)^3 ). - R. J. Mathar, Jan 14 2021
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MATHEMATICA
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PROG
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(Python)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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