Number of set partitions of [n] such that the difference between each element and its index (in the partition) is a multiple of five.

A274862

Number of set partitions of [n] such that the difference between each element and its index (in the partition) is a multiple of five.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =4a(4) =8a(5) =16a(6) =32a(7) =64a(8) =128a(9) =256a(10) =512a(11) =1040a(12) =2112a(13) =4288a(14) =8704a(15) =17664a(16) =36640a(17) =76208a(18) =158712a(19) =330632a(20) =688600a(21) =1481712a(22) =3210320a(23) =6987992a(24) =15244544a(25) =33265812a(26) =76267252a(27) =176853756a(28) =413956038a(29) =974437212

External references