52781domain: NAppears in sequencesSixth-order spt function.at n=12A221144The first position of the first cycle of sequence {b_k}={b_k}(n) in A237671.at n=21A238019Composite numbers m such that m divides Sum_{k=1..m-1} (lcm(1,2,...,(m-1)) / k)^2.at n=0A309556