Number of set partitions of [n] such that n is a multiple of each block size.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =11a(5) =2a(6) =167a(7) =2a(8) =1500a(9) =1206a(10) =16175a(11) =2a(12) =3486584a(13) =2a(14) =3188421a(15) =29226654a(16) =772458367a(17) =2a(18) =130880325103a(19) =2a(21) =623240762412a(22) =644066092301a(23) =2a(29) =2