Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.

A195976

Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.

Terms

    a(0) =16a(1) =78a(2) =134a(3) =256a(4) =519a(5) =1280a(6) =2718a(7) =5830a(8) =12799a(9) =28969a(10) =64536a(11) =144480a(12) =323887a(13) =730358a(14) =1647281a(15) =3720888a(16) =8406355a(17) =19026721a(18) =43091379a(19) =97668401a(20) =221445855a(21) =502417344a(22) =1140305840a(23) =2589100946a(24) =5880051614a(25) =13357939515a(26) =30351874554a(27) =68979138844

External references