Sum of all n-digit Cullen numbers.
A131700
Sum of all n-digit Cullen numbers.
Terms
- a(0) =13a(1) =90a(2) =1443a(3) =6658a(4) =81923a(5) =827395a(6) =17956868a(7) =157286403a(8) =1434451971a(9) =12884901891a(10) =114353504259
External references
- oeis: A131700