Number of nX6 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318550
Number of nX6 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =5a(1) =46a(2) =106a(3) =589a(4) =3172a(5) =14760a(6) =67976a(7) =337349a(8) =1614708a(9) =7855731a(10) =38347330a(11) =186692330a(12) =911693548a(13) =4447553946a(14) =21721993726a(15) =106065614622a(16) =517953864782
External references
- oeis: A318550