Number of nX7 0..1 arrays with every element equal to 0, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303324
Number of nX7 0..1 arrays with every element equal to 0, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =128a(2) =4a(3) =46a(4) =368a(5) =758a(6) =2956a(7) =15494a(8) =44101a(9) =190416a(10) =843033a(11) =3033091a(12) =12413910a(13) =51530654a(14) =201376755a(15) =814350745a(16) =3304173349a(17) =13195116320a(18) =53237817569a(19) =214790465512a(20) =862745046281
External references
- oeis: A303324