Number of nX5 0..1 arrays with rows, antidiagonals and columns unimodal.

Terms

a(0) =16a(1) =256a(2) =2297a(3) =13599a(4) =61545a(5) =230619a(6) =748950a(7) =2171533a(8) =5738616a(9) =14032520a(10) =32116856a(11) =69421945a(12) =142742110a(13) =280837253a(14) =531285626a(15) =970419825a(16) =1717396652a(17) =2953706474a(18) =4949721932a(19) =8100222189a(20) =12971210226a(21) =20360769871a(22) =31377189150a(23) =47538110053