Number of nX3 0..1 arrays with row sums and column sums unimodal.
A223712
Number of nX3 0..1 arrays with row sums and column sums unimodal.
Terms
- a(0) =7a(1) =53a(2) =333a(3) =1805a(4) =8953a(5) =41389a(6) =180718a(7) =757748a(8) =3072208a(9) =12100344a(10) =46606802a(11) =176082080a(12) =653863108a(13) =2394225532a(14) =8658131447a(15) =30954618019a(16) =109609761829a(17) =384756220575
External references
- oeis: A223712