Number of n X 3 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
A278275
Number of n X 3 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
Terms
- a(0) =0a(1) =4a(2) =25a(3) =136a(4) =839a(5) =5013a(6) =30370a(7) =183403a(8) =1108525a(9) =6699034a(10) =40484839a(11) =244664745a(12) =1478598250a(13) =8935711959a(14) =54001778309a(15) =326352531078
External references
- oeis: A278275