Number of nX3 0..2 arrays with antidiagonals unimodal.
A223571
Number of nX3 0..2 arrays with antidiagonals unimodal.
Terms
- a(0) =27a(1) =729a(2) =16038a(3) =352836a(4) =7762392a(5) =170772624a(6) =3756997728a(7) =82653950016
External references
- oeis: A223571