a(n) = Sum_{i=1..n} ( Sum_{j=1..n} i^j ).
A086787
a(n) = Sum_{i=1..n} ( Sum_{j=1..n} i^j ).
Terms
- a(0) =1a(1) =8a(2) =56a(3) =494a(4) =5699a(5) =82200a(6) =1419760a(7) =28501116a(8) =651233661a(9) =16676686696a(10) =472883843992
External references
- oeis: A086787