Number of n X 5 0..1 arrays with rows and antidiagonals unimodal and columns nondecreasing.

Terms

a(0) =16a(1) =86a(2) =275a(3) =691a(4) =1509a(5) =2985a(6) =5471a(7) =9431a(8) =15457a(9) =24285a(10) =36811a(11) =54107a(12) =77437a(13) =108273a(14) =148311a(15) =199487a(16) =263993a(17) =344293a(18) =443139a(19) =563587a(20) =709013a(21) =883129a(22) =1089999a(23) =1334055a(24) =1620113a(25) =1953389a(26) =2339515a(27) =2784555a(28) =3295021a(29) =3877889