OFFSET
1,6
LINKS
FORMULA
PROG
(PARI) A294881(n) = sumdiv(n, d, (d<n) * polisirreducible(Mod(1, 2) * Pol(binary(d))));
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Nov 09 2017
STATUS
approved