Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = Product_{p|n, p prime} (1 - p^k).
A322324
Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = Product_{p|n, p prime} (1 - p^k).
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =-1a(5) =0a(6) =1a(7) =-3a(8) =-2a(9) =0a(10) =1a(11) =-7a(12) =-8a(13) =-1a(14) =0a(15) =1a(16) =-15a(17) =-26a(18) =-3a(19) =-4a(20) =0a(21) =1a(22) =-31a(23) =-80a(24) =-7a(25) =-24a(26) =2a(27) =0a(28) =1a(29) =-63
External references
- oeis: A322324