A292167 Main diagonal of A292166.

1, -1, -4, -19, -175, 5675, 184457, 43191049, 2451878210, -1954643545560, -460010080560470, -507632980962973280, -2331098560820024079917, -1447441343052056996340091, 125256629703082731968449343539, 204110605936469378207070491919090

Offset: 0

Author

Seiichi Manyama, Sep 10 2017

Keywords

• sign

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..98

Crossrefs

Cf. A292166.

Programs

PARI

{a(n) = polcoeff(prod(k=1, n, 1-k^n*x^k+x*O(x^n)), n)}

Formula

a(n) = [x^n] Product_{k=1..n} (1 - k^n*x^k).