Sum of the numbers in the n-th row of the array at A248664.
A248668
Sum of the numbers in the n-th row of the array at A248664.
Terms
- a(0) =1a(1) =4a(2) =26a(3) =260a(4) =3610a(5) =64472a(6) =1409006a(7) =36432076a(8) =1087911890a(9) =36844580000
External references
- oeis: A248668