a(n) = sum_{k=0..n}C(n,k)^3*(-8)^k with C(n,k) = n!/(k!(n-k)!).
A245329
a(n) = sum_{k=0..n}C(n,k)^3*(-8)^k with C(n,k) = n!/(k!(n-k)!).
Terms
- a(0) =1a(1) =-7a(2) =1a(3) =1001a(4) =-15359a(5) =30233a(6) =3126529a(7) =-61392247a(8) =259448833a(9) =11970181433a(10) =-287815672319
External references
- oeis: A245329