Square array A(n,k), n >= 1, k >= 0, read by antidiagonals downwards, where A(n,k) = Sum_{j=1..n} floor(n/j) * (-k)^(j-1).
A344824
Square array A(n,k), n >= 1, k >= 0, read by antidiagonals downwards, where A(n,k) = Sum_{j=1..n} floor(n/j) * (-k)^(j-1).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =1a(5) =3a(6) =1a(7) =0a(8) =3a(9) =4a(10) =1a(11) =-1a(12) =5a(13) =2a(14) =5a(15) =1a(16) =-2a(17) =9a(18) =-4a(19) =4a(20) =6a(21) =1a(22) =-3a(23) =15a(24) =-20a(25) =13a(26) =4a(27) =7a(28) =1a(29) =-4
External references
- oeis: A344824