OFFSET
0,11
FORMULA
Convolution inverse of A206740.
EXAMPLE
G.f. = 1 - x - x^4 - x^7 - 2*x^10 - 3*x^13 - 5*x^16 - 8*x^19 - ...
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Aug 16 2017
STATUS
approved