A027483 Second subdiagonal of triangle A027478, constructed from the Stirling numbers of the first kind.
176, 2951, 22535, 112435, 426475, 1333906, 3614226, 8762370, 19439970, 40113425, 77924561, 143844701, 254168005, 432404980, 711642100, 1137438516, 1771335876, 2695062315, 4015516715, 5870624375, 8436160271, 11933641126, 16639392550, 22894902550, 31118577750
Offset: 3
Crossrefs
Cf. A027478.
Formula
a(n) = A027478(n,n+2).
Conjectures from Chai Wah Wu, May 07 2025: (Start)
a(n) = 9*a(n-1) - 36*a(n-2) + 84*a(n-3) - 126*a(n-4) + 126*a(n-5) - 84*a(n-6) + 36*a(n-7) - 9*a(n-8) + a(n-9) for n > 11.
G.f.: x^3*(x^5 + 112*x^4 + 1072*x^3 + 2312*x^2 + 1367*x + 176)/(1 - x)^9. (End)
Extensions
More terms from Sean A. Irvine, Nov 06 2019