Number of sets of lists (cf. A000262) with even number of lists.
A088312
Number of sets of lists (cf. A000262) with even number of lists.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =6a(4) =37a(5) =260a(6) =2101a(7) =19362a(8) =201097a(9) =2326536a(10) =29668681a(11) =413257790a(12) =6238931821a(13) =101415565836
External references
- oeis: A088312