Number of set partitions of {1,2,...,n} such that the size of the smallest block is unique.
A224219
Number of set partitions of {1,2,...,n} such that the size of the smallest block is unique.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =5a(4) =31a(5) =82a(6) =344a(7) =1661a(8) =7942a(9) =38721a(10) =228680a(11) =1377026a(12) =8529756a(13) =56756260a(14) =402300799a(15) =2960135917a(16) =22692746719a(17) =181667760724
External references
- oeis: A224219