Number of partitions of 7^n into powers of 7, also equals the row sums of triangle A111830, which shifts columns left and up under matrix 7th power.

A111832

Number of partitions of 7^n into powers of 7, also equals the row sums of triangle A111830, which shifts columns left and up under matrix 7th power.

Terms

    a(0) =1a(1) =2a(2) =9a(3) =205a(4) =24901a(5) =16077987a(6) =58169810617

External references