A370155 Column 2 of triangle A370041.

1, 0, -6, 19, 17, -98, 39, 291, -264, -627, 773, 1525, -2000, -3895, 5606, 8784, -14325, -18125, 32856, 37727, -72557, -77316, 157044, 150945, -326602, -286320, 655760, 536800, -1287225, -986584, 2474251, 1770786, -4650780, -3122412, 8570426, 5430403, -15530336, -9307817, 27707720

Offset

3,3

Comments

The g.f. of triangle A370041, G(x,y), satisfies Sum_{n=-oo..+oo} (x^n - y*G(x,y))^n = 1 - (y-2)*Sum_{n>=1} x^(n^2).

Links

Paul D. Hanna, Table of n, a(n) for n = 3..201

Formula

a(n) = A370041(n,2) for n >= 3.

Crossrefs

Cf. A370041, A370153, A370154.

Sequence in context: A370716 A119986 A245869 * A184197 A173568 A012589

Adjacent sequences: A370152 A370153 A370154 * A370156 A370157 A370158

Keyword

sign

Author

Paul D. Hanna, Feb 10 2024

Status

approved