Denominator of (-1)^n*n!*(E(n,2)-E(n,1)*E(n-1,1)) where E(n,x) = Sum_{k=0..n} (-1)^k*x^k/k!.
A065953
Denominator of (-1)^n*n!*(E(n,2)-E(n,1)*E(n-1,1)) where E(n,x) = Sum_{k=0..n} (-1)^k*x^k/k!.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =6a(7) =8a(8) =40a(9) =720a(10) =560a(11) =4480a(12) =362880a(13) =1209600a(14) =13305600a(15) =479001600a(16) =188697600a(17) =2641766400a(19) =774918144000
External references
- oeis: A065953