127089domain: NAppears in sequencesNumbers k that divide s(k), where s(1)=1, s(j)=19*s(j-1)+j.at n=40A014869"BFJ" (reversible, size, labeled) transform of 1,2,3,4...at n=9A032040Expansion of 1/(1-3x+3x^4).at n=11A090401