Number T(n,k) of set partitions of [n] such that the maximal absolute difference between the least elements of consecutive blocks equals k; triangle T(n,k), n>=0, 0<=k<=max(n-1,0), read by rows.
A287215
Number T(n,k) of set partitions of [n] such that the maximal absolute difference between the least elements of consecutive blocks equals k; triangle T(n,k), n>=0, 0<=k<=max(n-1,0), read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =3a(6) =1a(7) =1a(8) =8a(9) =5a(10) =1a(11) =1a(12) =22a(13) =21a(14) =7a(15) =1a(16) =1a(17) =65a(18) =86a(19) =39a(20) =11a(21) =1a(22) =1a(23) =209a(24) =361a(25) =209a(26) =77a(27) =19a(28) =1a(29) =1
External references
- oeis: A287215