a(n) is the sum of all n-digit palindromes.

A295319

a(n) is the sum of all n-digit palindromes.

Terms

    a(0) =45a(1) =495a(2) =49500a(3) =495000a(4) =49500000a(5) =495000000a(6) =49500000000a(7) =495000000000

External references