a(n) = Sum_{k=0..n} n^k * |(n - k | k)|, where (a | b) denotes the Kronecker symbol.
A367546
a(n) = Sum_{k=0..n} n^k * |(n - k | k)|, where (a | b) denotes the Kronecker symbol.
Terms
- a(0) =0a(1) =2a(2) =2a(3) =12a(4) =68a(5) =780a(6) =7782a(7) =137256a(8) =2130440a(9) =47895390a(10) =1010001010a(11) =28531167060a(12) =743044451340
External references
- oeis: A367546