Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of exp(-Sum_{j>0} sigma_k(j)*x^j/j) in powers of x.
A294947
Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of exp(-Sum_{j>0} sigma_k(j)*x^j/j) in powers of x.
Terms
- a(0) =1a(1) =1a(2) =-1a(3) =1a(4) =-1a(5) =-2a(6) =1a(7) =-1a(8) =-4a(9) =-7a(10) =1a(11) =-1a(12) =-8a(13) =-23a(14) =-57a(15) =1a(16) =-1a(17) =-16a(18) =-73a(19) =-229a(20) =-541a(21) =1a(22) =-1a(23) =-32a(24) =-227a(25) =-927a(26) =-2761a(27) =-7126a(28) =1a(29) =-1
External references
- oeis: A294947