A351317 Expansion of g.f.: 1/(Sum_{p odd prime} x^p)^2 (even powers only).

1, -2, 1, 2, -6, 6, 3, -18, 24, -2, -47, 84, -44, -100, 255, -218, -154, 690, -823, -30, 1684, -2684, 1044, 3586, -7868, 5724, 6114, -21042, 22068, 5286, -51315, 72380, -17221, -112048, 213158, -126396, -207141, 574780, -523373, -263558, 1423650, -1772760, 113584

Offset

-3,2

Links

Table of n, a(n) for n=-3..39.

Example

G.f.: 1/x^6 - 2/x^4 + 1/x^2 + 2 - 6*x^2 + 6*x^4 + 3*x^6 - 18*x^8 + ... .

Crossrefs

Cf. A000040, A352500.

Cf. A352479, A101264, A002372, A087916.

Sequence in context: A219570 A285030 A281781 * A094965 A025277 A248100

Adjacent sequences: A351314 A351315 A351316 * A351318 A351319 A351320

Keyword

sign

Author

Seiichi Manyama, Mar 18 2022

Status

approved