> %S A278571 1,7,42,385,436,1530,3180,3625,8208,3767,10116,16479
> %N A278571 Index of first occurrence of n in A278567.
I get a(12)=6699 instead of 16479. (A007304(6699) = 34891,
Cyclo(34891) has +12 coefficients.) Can someone check?
See also A013594, A134518.
--
Don Reble djr at nk.ca