Number of (n+3)X(n+3) 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.
A186590
Number of (n+3)X(n+3) 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.
Terms
- a(0) =4294967296a(1) =2703a(2) =33006a(3) =2526165a(4) =11494293a(5) =16898709a(6) =17395749a(7) =20385141a(8) =27395301a(9) =42268437a(10) =70928997a(11) =139324629a(12) =471686661a(13) =1278076821a(14) =2789296725
External references
- oeis: A186590