Number of (n+1)X3 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.
A188304
Number of (n+1)X3 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.
Terms
- a(0) =24a(1) =128a(2) =664a(3) =3036a(4) =14832a(5) =71888a(6) =348728a(7) =1694376a(8) =8227500a(9) =39976476a(10) =194234820a(11) =943833852a(12) =4586483788a(13) =22288261956a(14) =108312977948a(15) =526368362348
External references
- oeis: A188304