194942domain: NAppears in sequencesT(n,k) counts the set partitions of n containing k-1 blocks of length 1.at n=46A086659prime(n^3) - prime(n).at n=25A214612Least number k such that n*k^n +/- 1 are twin primes, or a(n) = 0 if no such number exists.at n=44A239735Column 1 of triangle in A250104 (or A124323).at n=10A250105