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 and all four letters occur at least once in the partition.
A293368
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 and all four letters occur at least once in the partition.
Terms
- a(0) =47a(1) =544a(2) =4232a(3) =25100a(4) =136516a(5) =666800a(6) =3142884a(7) =14024256a(8) =61637303a(9) =262474700a(10) =1109010890a(11) =4603058016a(12) =19018730793a(13) =77751623552a(14) =317106002688
External references
- oeis: A293368