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Second subdiagonal of triangle A027477, constructed from the Stirling numbers of the first kind.
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%I #19 Apr 08 2021 11:45:48

%S 23,215,1035,3535,9730,23058,48930,95370,173745,299585,493493,782145,

%T 1199380,1787380,2597940,3693828,5150235,7056315,9516815,12653795,

%U 16608438,21542950,27642550,35117550,44205525,55173573,68320665,83980085,102521960,124355880

%N Second subdiagonal of triangle A027477, constructed from the Stirling numbers of the first kind.

%F a(n) = A027477(n+2,n).

%F Conjectures from _Chai Wah Wu_, Apr 08 2021: (Start)

%F a(n) = 7*a(n-1) - 21*a(n-2) + 35*a(n-3) - 35*a(n-4) + 21*a(n-5) - 7*a(n-6) + a(n-7) for n > 9.

%F G.f.: x^3*(-13*x^2 - 54*x - 23)/(x - 1)^7. (End)

%Y Cf. A027477.

%K nonn,easy

%O 3,1

%A _Olivier GĂ©rard_

%E More terms from _Sean A. Irvine_, Nov 06 2019