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A291533
Expansion of the series reversion of g.f. for the nonprime numbers (A018252).
0
1, -4, 26, -208, 1859, -17790, 178308, -1847882, 19640154, -212911066, 2345049018, -26168243862, 295214515662, -3361428239216, 38580429168968, -445874925644701, 5184317812361117, -60603410700370525, 711826341810784570, -8396670336877539127, 99428914632341468974
OFFSET
1,2
LINKS
FORMULA
G.f. A(x) satisfies: A(x) + 4*A(x)^2 + 6*A(x)^3 + 8*A(x)^4 + 9*A(x)^5 + 10*A(x)^6 + 12*A(x)^7 + ... = x.
CROSSREFS
Sequence in context: A368968 A369511 A228966 * A363363 A239295 A274735
KEYWORD
sign
AUTHOR
Ilya Gutkovskiy, Aug 25 2017
STATUS
approved