Number of set partitions of [n] such that i-j is a multiple of ten for all i,j belonging to the same block.
A275077
Number of set partitions of [n] such that i-j is a multiple of ten 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) =1a(11) =2a(12) =4a(13) =8a(14) =16a(15) =32a(16) =64a(17) =128a(18) =256a(19) =512a(20) =1024a(21) =2560a(22) =6400a(23) =16000a(24) =40000a(25) =100000a(26) =250000a(27) =625000a(28) =1562500a(29) =3906250
External references
- oeis: A275077