A058756 G.f. is (1-S)/(1+S), where S = g.f. for A000084.

1, -2, -2, -2, -6, -10, -34, -82, -254, -730, -2238, -6826, -21370, -67122, -213654, -684258, -2208694, -7169298, -23402738, -76748130, -252790518, -835816658, -2773236614, -9230776706, -30814377058, -103139338858, -346067984622, -1163810570178

Offset

0,2

Links

Table of n, a(n) for n=0..27.

Crossrefs

Cf. A036655, A000137.

Sequence in context: A186507 A032306 A227847 * A237614 A257255 A248765

Adjacent sequences: A058753 A058754 A058755 * A058757 A058758 A058759

Keyword

sign

Author

N. J. A. Sloane, Jan 01 2001

Status

approved