a(n) = n! * [x^n] -x*(x + 1)*exp(x)/(x - 1)^3.
A343276
a(n) = n! * [x^n] -x*(x + 1)*exp(x)/(x - 1)^3.
Terms
- a(0) =0a(1) =1a(2) =10a(3) =81a(4) =652a(5) =5545a(6) =50886a(7) =506905a(8) =5480056a(9) =64116657a(10) =808856290a(11) =10959016321a(12) =158851484100
External references
- oeis: A343276