A326484 a(n) = 2^n*E2_{n}(-1/2) with E2_{n} the polynomials defined in A326480.

1, -6, 28, -72, -176, 1824, 11968, -177792, -1062656, 25864704, 155204608, -5535270912, -33211559936, 1633165123584, 9798991003648, -635421070098432, -3812526419542016, 315212388818878464, 1891274332917465088, -194181169538677604352, -1165087017232048848896

Offset: 0

Author

Peter Luschny, Jul 12 2019

Keywords

• sign

Comments

For comments see A326480.

Crossrefs

Cf. A326480, A155585, A326481, A326482, A326483, A326484.

Programs

Maple

# The function E2(n) is defined in A326480.
seq(subs(x=-1/2, 2^n*E2(n)), n=0..22);