Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of e.g.f. 1/Product_{j > 0, j mod k > 0} exp(x^j).
A293530
Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of e.g.f. 1/Product_{j > 0, j mod k > 0} exp(x^j).
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =-1a(5) =0a(6) =1a(7) =-1a(8) =1a(9) =0a(10) =1a(11) =-1a(12) =-1a(13) =-7a(14) =0a(15) =1a(16) =-1a(17) =-1a(18) =5a(19) =25a(20) =0a(21) =1a(22) =-1a(23) =-1a(24) =-1a(25) =-23a(26) =-181a(27) =0a(28) =1a(29) =-1
External references
- oeis: A293530