Number of 7Xn 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302520
Number of 7Xn 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =64a(1) =22a(2) =28a(3) =163a(4) =376a(5) =1088a(6) =4558a(7) =23944a(8) =95681a(9) =344525a(10) =1302832a(11) =5550086a(12) =23153940a(13) =91082448a(14) =353017903a(15) =1418215128a(16) =5785509156a(17) =23250191623a(18) =92140078093a(19) =367162912762
External references
- oeis: A302520