Expansion of e.g.f. (1-2x)(1-x)/(1-4x+2x^2).
A052659
Expansion of e.g.f. (1-2x)(1-x)/(1-4x+2x^2).
Terms
- a(0) =1a(1) =1a(2) =8a(3) =84a(4) =1152a(5) =19680a(6) =403200a(7) =9636480a(8) =263208960a(9) =8087869440a(10) =276137164800
External references
- oeis: A052659