Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
A301606
Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =10a(2) =26a(3) =226a(4) =1297a(5) =8888a(6) =60841a(7) =421168a(8) =2940940a(9) =20639456a(10) =145157471a(11) =1021952648a(12) =7197614571a(13) =50704160874a(14) =357234289578
External references
- oeis: A301606