Number of (n+2)X4 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically.
A204495
Number of (n+2)X4 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically.
Terms
- a(0) =46458a(1) =339311a(2) =3418839a(3) =42736635a(4) =493398441a(5) =5506995671a(6) =66134172894a(7) =768258278406
External references
- oeis: A204495