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A020085
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a(n) = floor( Gamma(n + 1/5)/Gamma(1/5) ).
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5
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1, 0, 0, 0, 1, 7, 36, 228, 1647, 13507, 124268, 1267542, 14196477, 173197024, 2286200718, 32464050199, 493453563029, 7993947721071, 137495900802423, 2502425394604113, 48046567576398986, 970540665043259525
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OFFSET
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0,6
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LINKS
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MAPLE
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Digits:= 64: x:=1/5: f:= proc(n, x) trunc(GAMMA(n+x)/GAMMA(x)); end;
seq(floor(pochhammer(1/5, n)), n = 0..25); # G. C. Greubel, Nov 17 2019
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MATHEMATICA
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Floor[Pochhammer[1/5, Range[0, 25]]] (* G. C. Greubel, Nov 19 2018 *)
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PROG
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(PARI) vector(26, n, my(x=1/5); gamma(n-1+x)\gamma(x) ) \\ G. C. Greubel, Nov 19 2018
(Magma) [Truncate(Gamma(n + 1/5)/Gamma(1/5)): n in [0..30]]; // G. C. Greubel, Nov 19 2018
(Sage) [int(gamma(n + 1/5)/gamma(1/5)) for n in range(30)] # G. C. Greubel, Nov 19 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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