a(1) = 1, a(2) = 10, a(n+2) = 10*a(n+1) + (n + 1)*(n + 2)*a(n).
A142987
a(1) = 1, a(2) = 10, a(n+2) = 10*a(n+1) + (n + 1)*(n + 2)*a(n).
Terms
- a(0) =1a(1) =10a(2) =106a(3) =1180a(4) =13920a(5) =174600a(6) =2330640a(7) =33084000a(8) =498646080a(9) =7964020800a(10) =134491276800
External references
- oeis: A142987