Number of 6 X n 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.
A224266
Number of 6 X n 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.
Terms
- a(0) =28a(1) =784a(2) =11990a(3) =116692a(4) =816361a(5) =4480391a(6) =20568693a(7) =82733667a(8) =301228048a(9) =1015242774a(10) =3216158234a(11) =9677475342a(12) =27865037554a(13) =77192516888a(14) =206580752375a(15) =535811566173
External references
- oeis: A224266