Number of factorizations of n! into factors > 1 that can be obtained by taking the block-products of some set partition of {2,3,...,n}.
A321467
Number of factorizations of n! into factors > 1 that can be obtained by taking the block-products of some set partition of {2,3,...,n}.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =15a(6) =47a(7) =183a(8) =719a(9) =3329a(10) =14990a(11) =83798a(12) =393864a(13) =2518898
External references
- oeis: A321467