E.g.f. A(x) satisfies [x^k] A(x)^(n*(n+1)/2+1) = 0 for k = n*(n-1)/2+2 through k = n*(n+1)/2+1 for n >= 1, with a(0) = a(1) = 1.
A377105
E.g.f. A(x) satisfies [x^k] A(x)^(n*(n+1)/2+1) = 0 for k = n*(n-1)/2+2 through k = n*(n+1)/2+1 for n >= 1, with a(0) = a(1) = 1.
Terms
- a(0) =1a(1) =1a(2) =-1a(3) =3a(4) =-15a(5) =120a(6) =-1530a(7) =27630a(8) =-609570a(9) =15061950a(10) =-401747850a(11) =11409145650a(12) =-343436893650
External references
- oeis: A377105