90275

Appears in sequences

• a(n) = Sum_{i=0..n} digsum_9(i)^4, where digsum_9(i) = A053830(i).at n=37A231687
• a(n) = n^4 - 3*n^3 + 9*n^2 - 7*n + 5 (n>=1).at n=17A304162