The binomial sum a(n) = Sum_{k=0..n}(binomial(n,k)*binomial(n+1,k+1)*binomial(n+2,k+2)).
A277188
The binomial sum a(n) = Sum_{k=0..n}(binomial(n,k)*binomial(n+1,k+1)*binomial(n+2,k+2)).
Terms
- a(0) =1a(1) =7a(2) =43a(3) =281a(4) =1896a(5) =13112a(6) =92359a(7) =659941a(8) =4769758a(9) =34797170a(10) =255838760a(11) =1893389720a(12) =14091400480a(13) =105385445856a(14) =791504226943
External references
- oeis: A277188