Number of 5 X n 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

A224265

Number of 5 X n 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

Terms

    a(0) =21a(1) =441a(2) =5246a(3) =41012a(4) =238366a(5) =1122522a(6) =4542734a(7) =16423026a(8) =54399996a(9) =167906334a(10) =488545330a(11) =1351296894a(12) =3575548984a(13) =9095336020a(14) =22330458551a(15) =53087335395a(16) =122539314344a(17) =275260139864a(18) =602890604743

External references