Number of nX3 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.
A278172
Number of nX3 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.
Terms
- a(0) =0a(1) =5a(2) =18a(3) =126a(4) =737a(5) =4551a(6) =27692a(7) =169131a(8) =1032173a(9) =6300804a(10) =38460963a(11) =234775180a(12) =1433121527a(13) =8748112011a(14) =53400529535a(15) =325969389167
External references
- oeis: A278172