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

Terms

a(0) =16a(1) =101a(2) =371a(3) =1040a(4) =2516a(5) =5573a(6) =11635a(7) =23230a(8) =44703a(9) =83305a(10) =150815a(11) =265901a(12) =457485a(13) =769447a(14) =1267085a(15) =2045843a(16) =3242928a(17) =5052561a(18) =7745747a(19) =11695606a(20) =17409482a(21) =25569241a(22) =37081383a(23) =53138828a(24) =75296493a(25) =105563057a(26) =146511615a(27) =201412251