Number of set partitions of [n] such that i-j is a multiple of eight for all i,j belonging to the same block.
A275075
Number of set partitions of [n] such that i-j is a multiple of eight for all i,j belonging to the same block.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =2a(10) =4a(11) =8a(12) =16a(13) =32a(14) =64a(15) =128a(16) =256a(17) =640a(18) =1600a(19) =4000a(20) =10000a(21) =25000a(22) =62500a(23) =156250a(24) =390625a(25) =1171875a(26) =3515625a(27) =10546875a(28) =31640625a(29) =94921875
External references
- oeis: A275075