Number of sets of lists with distinct list sizes, cf. A000262.
A088311
Number of sets of lists with distinct list sizes, cf. A000262.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =12a(4) =48a(5) =360a(6) =2880a(7) =25200a(8) =241920a(9) =2903040a(10) =36288000a(11) =479001600a(12) =7185024000a(13) =112086374400
External references
- oeis: A088311