Number of 4 X n 0..1 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.

Terms

a(0) =16a(1) =55a(2) =105a(3) =168a(4) =252a(5) =363a(6) =508a(7) =695a(8) =933a(9) =1232a(10) =1603a(11) =2058a(12) =2610a(13) =3273a(14) =4062a(15) =4993a(16) =6083a(17) =7350a(18) =8813a(19) =10492a(20) =12408a(21) =14583a(22) =17040a(23) =19803a(24) =22897a(25) =26348a(26) =30183a(27) =34430a(28) =39118a(29) =44277