a(n) = hypergeometric([n, -n], [], 1).

A278069

a(n) = hypergeometric([n, -n], [], 1).

Terms

    a(0) =1a(1) =0a(2) =3a(3) =-32a(4) =465a(5) =-8544a(6) =190435a(7) =-4996032a(8) =150869313a(9) =-5155334720a(10) =196677847971

External references