Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = Sum_{d|n, d==1 (mod 4)} d^k - Sum_{d|n, d==3 (mod 4)} d^k.

A322143

Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = Sum_{d|n, d==1 (mod 4)} d^k - Sum_{d|n, d==3 (mod 4)} d^k.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =0a(6) =1a(7) =1a(8) =-2a(9) =1a(10) =1a(11) =1a(12) =-8a(13) =1a(14) =2a(15) =1a(16) =1a(17) =-26a(18) =1a(19) =6a(20) =0a(21) =1a(22) =1a(23) =-80a(24) =1a(25) =26a(26) =-2a(27) =0a(28) =1a(29) =1

External references