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A143169 Fourth column of triangle A000369: |S2(-3;n+4,4)|. 3

%I #8 Jun 18 2017 07:34:23

%S 1,30,825,24150,775845,27478710,1069801425,45547251750,2108878296525,

%T 105616706545350,5693005525232025,328784072492625750,

%U 20261087389388971125,1327378299252353097750,92142485069345244158625,6756933615539839013031750,522007423480304780922028125

%N Fourth column of triangle A000369: |S2(-3;n+4,4)|.

%C Also third column (m=3) of triangle A049029 (S2(5)).

%F a(n) = A000369(n+4,4) = |S2(-3;n+4,4)|, n >= 0.

%F E.g.f.: d^4/dx^4 ((1-(1-4*x)^(1/4))^4)/4! = (-1/2)*(-45*(1-4*x)^(1/2)+120*(1-4*x)^(1/4)-77)/(1-4*x)^(15/4).

%Y Third column of A000369 is A143168, fifth one is A143170.

%Y Also third column (m=3) of triangle A049029 (S2(5)). - _Wolfdieter Lang_, Nov 17 2008

%K nonn,easy

%O 0,2

%A _Wolfdieter Lang_, Sep 15 2008

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)