A298260 G.f. A(x) satisfies A(x) = Product_{k>=1} 1/(1 + x^k*A(x)).

1, -1, 1, -3, 8, -22, 62, -182, 550, -1694, 5294, -16758, 53635, -173260, 564129, -1849448, 6099972, -20227036, 67390803, -225485432, 757361764, -2552692848, 8631144354, -29268108530, 99511629658, -339167845294, 1158607479710, -3966129297519, 13603228472518

Offset

0,4

Links

Table of n, a(n) for n=0..28.

Example

G.f. A(x) = 1 - x + x^2 - 3*x^3 + 8*x^4 - 22*x^5 + 62*x^6 - 182*x^7 + 550*x^8 - 1694*x^9 + ...
G.f. A(x) satisfies A(x) = 1/((1 + x*A(x)) * (1 + x^2*A(x)) * (1 + x^3*A(x)) * ... ).

Crossrefs

Cf. A145267, A145268, A298261.

Sequence in context: A073357 A278614 A188464 * A336990 A317997 A164934

Adjacent sequences: A298257 A298258 A298259 * A298261 A298262 A298263

Keyword

sign

Author

Ilya Gutkovskiy, Jan 15 2018

Status

approved