Number of sets of even number of even lists, cf. A000262.
A096965
Number of sets of even number of even lists, cf. A000262.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =7a(4) =37a(5) =241a(6) =2101a(7) =18271a(8) =201097a(9) =2270017a(10) =29668681a(11) =410815351a(12) =6238931821a(13) =101560835377
External references
- oeis: A096965