Number of n X 7 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.
A224261
Number of n X 7 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.
Terms
- a(0) =239a(1) =9503a(2) =119367a(3) =850875a(4) =4542734a(5) =20568693a(6) =83124099a(7) =306179180a(8) =1038489172a(9) =3266157979a(10) =9583669559a(11) =26387428383a(12) =68551067596a(13) =168889679757a(14) =396460357949a(15) =890533215416
External references
- oeis: A224261