Number of (n+1) X (1+1) 0..3 arrays with every 2 X 2 subblock summing to 2 3 4 5 6 7 8 9 or 10.
A251517
Number of (n+1) X (1+1) 0..3 arrays with every 2 X 2 subblock summing to 2 3 4 5 6 7 8 9 or 10.
Terms
- a(0) =246a(1) =3798a(2) =58618a(3) =904734a(4) =13963994a(5) =215525422a(6) =3326498602a(7) =51342402526a(8) =792437518266
External references
- oeis: A251517