Number of nX5 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.

A301881

Number of nX5 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =35a(2) =125a(3) =510a(4) =1961a(5) =7869a(6) =31173a(7) =124795a(8) =497909a(9) =1992271a(10) =7963325a(11) =31857711a(12) =127402805a(13) =509641959a(14) =2038421709a(15) =8153897359a(16) =32614779749a(17) =130460538967a(18) =521837435069

External references