Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18.
A233993
Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18.
Terms
- a(0) =17156a(1) =51026a(2) =150572a(3) =560408a(4) =2021016a(5) =9191620a(6) =39038268a(7) =213791308a(8) =1031265884a(9) =6478189956a(10) =33941673948a(11) =230895962640
External references
- oeis: A233993