Number of nX4 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302377
Number of nX4 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =46a(2) =430a(3) =4640a(4) =48980a(5) =514655a(6) =5421003a(7) =57068484a(8) =600825641a(9) =6325616349a(10) =66596986535a(11) =701143904697
External references
- oeis: A302377