Number of (n+2)X5 0..1 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..1 introduced in row major order.
A203918
Number of (n+2)X5 0..1 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..1 introduced in row major order.
Terms
- a(0) =1400a(1) =6050a(2) =21470a(3) =75272a(4) =267066a(5) =949442a(6) =3376768a(7) =12014802a(8) =42694542a(9) =151658528a(10) =538889650a(11) =1914938498a(12) =6805082304a(13) =24183722738a(14) =85939263318a(15) =305389881288
External references
- oeis: A203918