Number of set partitions of [n] such that i-j is a multiple of nine for all i,j belonging to the same block.
A275076
Number of set partitions of [n] such that i-j is a multiple of nine 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) =1a(10) =2a(11) =4a(12) =8a(13) =16a(14) =32a(15) =64a(16) =128a(17) =256a(18) =512a(19) =1280a(20) =3200a(21) =8000a(22) =20000a(23) =50000a(24) =125000a(25) =312500a(26) =781250a(27) =1953125a(28) =5859375a(29) =17578125
External references
- oeis: A275076