Number of nX5 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
A278091
Number of nX5 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
Terms
- a(0) =0a(1) =27a(2) =351a(3) =6285a(4) =114028a(5) =2066549a(6) =37564017a(7) =682015651a(8) =12386272982a(9) =224933023893
External references
- oeis: A278091