Expansion of (-1 + 1/(1-7*x)^7)/(49*x); related to A036226.

A053110

Expansion of (-1 + 1/(1-7*x)^7)/(49*x); related to A036226.

Terms

    a(0) =1a(1) =28a(2) =588a(3) =10290a(4) =158466a(5) =2218524a(6) =28840812a(7) =353299947a(8) =4121832715a(9) =46164526408a(10) =499416240232

External references