Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1s.
A296326
Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1s.
Terms
- a(0) =1a(1) =45a(2) =278a(3) =1677a(4) =14691a(5) =112235a(6) =850404a(7) =6660799a(8) =51754039a(9) =401363520a(10) =3119306759a(11) =24239641260a(12) =188341349284
External references
- oeis: A296326