Number of partitions of n where each part i is marked with a word of length i over a quaternary alphabet whose letters appear in alphabetical order.

A261738

Number of partitions of n where each part i is marked with a word of length i over a quaternary alphabet whose letters appear in alphabetical order.

Terms

    a(0) =1a(1) =4a(2) =26a(3) =124a(4) =631a(5) =2780a(6) =12954a(7) =55196a(8) =241634a(9) =1012196a(10) =4280046a(11) =17636252a(12) =73157709a(13) =298342936a(14) =1220952044a(15) =4947485904a(16) =20079338277a(17) =80987461760a(18) =326986050564

External references