192216796875domain: NAppears in sequencesExpansion of g.f. (1-10x)/(1-15x).at n=10A091882A modular recurrence.at n=19A101553Number of set partitions of [n] such that i-j is a multiple of ten for all i,j belonging to the same block.at n=39A275077a(n) = 5*(n + 5)^(n-1).at n=10A362356