Expansion of e.g.f. (1-x)/(1-2*x+x^2-x^3).
A052691
Expansion of e.g.f. (1-x)/(1-2*x+x^2-x^3).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =12a(4) =96a(5) =840a(6) =8640a(7) =105840a(8) =1491840a(9) =23587200a(10) =413683200a(11) =7983360000a(12) =168129561600
External references
- oeis: A052691