Number of n X 5 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself.

A266009

Number of n X 5 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself.

Terms

    a(0) =1a(1) =4a(2) =11a(3) =27a(4) =70a(5) =182a(6) =483a(7) =1281a(8) =3389a(9) =8986a(10) =23818a(11) =63151a(12) =167404a(13) =443816a(14) =1176578a(15) =3119246a(16) =8269369a(17) =21922921a(18) =58119638a(19) =154080691a(20) =408482159a(21) =1082924551a(22) =2870933873a(23) =7611114236a(24) =20177774274a(25) =53493165081a(26) =141815376408a(27) =375965811006

External references