Number of (n+1)X2 0..2 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum.
A185610
Number of (n+1)X2 0..2 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum.
Terms
- a(0) =0a(1) =171a(2) =361a(3) =3645a(4) =13365a(5) =94905a(6) =424845a(7) =2682129a(8) =13079349a(9) =78537465a(10) =399963789a(11) =2339595729a(12) =12218349285a(13) =70347244905a(14) =373332026493
External references
- oeis: A185610