a(1)=1, a(n) = 25*a(n-1) + n.

A014914

a(1)=1, a(n) = 25*a(n-1) + n.

Terms

    a(0) =1a(1) =27a(2) =678a(3) =16954a(4) =423855a(5) =10596381a(6) =264909532a(7) =6622738308a(8) =165568457709

External references