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A162632
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G.f. is the polynomial (Product_{k=1..14} (1 - x^(3*k)))/(1-x)^14.
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1
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1, 14, 105, 559, 2366, 8463, 26571, 75126, 194817, 469728, 1064166, 2284086, 4675748, 9179014, 17358666, 31744441, 56319263, 97205511, 163611175, 269111465, 433356858, 684315658, 1061177819, 1618066905, 2428728445
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OFFSET
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0,2
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COMMENTS
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This is a row of the triangle in A162499. Only finitely many terms are nonzero.
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LINKS
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MAPLE
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m:=14: seq(coeff(series(mul((1-x^(3*k)), k=1..m)/(1-x)^m, x, n+1), x, n), n=0..24); # Muniru A Asiru, Jul 07 2018
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MATHEMATICA
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CoefficientList[Series[(Times@@(1-x^(3*Range[14])))/(1-x)^14, {x, 0, 30}], x] (* Harvey P. Dale, Apr 28 2018 *)
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PROG
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(PARI) x='x+O('x^50); A = prod(k=1, 14, (1-x^(3*k)))/(1-x)^14; Vec(A) \\ G. C. Greubel, Jul 06 2018
(Magma) m:=50; R<x>:=PowerSeriesRing(Integers(), m); F:=(&*[(1-x^(3*k)): k in [1..14]])/(1-x)^14; Coefficients(R!(F)); // G. C. Greubel, Jul 06 2018
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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