Numerator of Sum_{k=0..n} binomial(n,k)*(-1)^k/(k^2+1).
A190948
Numerator of Sum_{k=0..n} binomial(n,k)*(-1)^k/(k^2+1).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =0a(4) =-12a(5) =-54a(6) =-2628a(7) =-77616a(8) =-86688a(9) =-3837456a(10) =-6295968a(11) =-5189982336a(12) =-773398378368a(13) =-60614059968a(14) =-710855139456
External references
- oeis: A190948