Number of nX6 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302678
Number of nX6 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =13a(1) =13a(2) =40a(3) =76a(4) =187a(5) =453a(6) =1125a(7) =2782a(8) =6843a(9) =16908a(10) =41758a(11) =103027a(12) =254329a(13) =627855a(14) =1549720a(15) =3825349a(16) =9442726a(17) =23308474a(18) =57535003a(19) =142020909a(20) =350567119a(21) =865346622a(22) =2136039825a(23) =5272643974a(24) =13015100410a(25) =32126739133a(26) =79302295311a(27) =195751392919
External references
- oeis: A302678