Number of partitions of {1,..,n} into any number of lists of size not equal to 3, where a list means an ordered subset, cf. A000262.
A113236
Number of partitions of {1,..,n} into any number of lists of size not equal to 3, where a list means an ordered subset, cf. A000262.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =7a(4) =49a(5) =321a(6) =2851a(7) =24823a(8) =256257a(9) =2887489a(10) =36759331a(11) =507010791a(12) =7597222513a(13) =122184356737
External references
- oeis: A113236