Number of ordered set partitions of [n] where k = four is minimal such that for each block b the smallest integer interval containing b has at most k elements.
A320617
Number of ordered set partitions of [n] where k = four is minimal such that for each block b the smallest integer interval containing b has at most k elements.
Terms
- a(0) =13a(1) =114a(2) =924a(3) =8152a(4) =79682a(5) =845874a(6) =9699504a(7) =119751978a(8) =1586912838a(9) =22489462512a(10) =339643322952
External references
- oeis: A320617