Number of sets of lists (cf. A000262) whose list sizes are not a multiple of 3.
A113775
Number of sets of lists (cf. A000262) whose list sizes are not a multiple of 3.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =7a(4) =49a(5) =321a(6) =2131a(7) =19783a(8) =195777a(9) =2101249a(10) =25721731a(11) =340358151a(12) =4902173233a(13) =75688032577
External references
- oeis: A113775