3305017domain: NPropertiesPrimalityPrimeyesAppears in sequencesThe partition function G(n,4).at n=12A001681Number A(n,k) of set partitions of {1,...,k*n} into sets of size at most n; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=32A229243Number of set partitions of {1,...,3n} into sets of size at most n.at n=4A229413Prime numbersat n=237228