Number of n X 7 0..1 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.
A223948
Number of n X 7 0..1 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.
Terms
- a(0) =8a(1) =64a(2) =352a(3) =1479a(4) =5233a(5) =16845a(6) =52532a(7) =166076a(8) =545443a(9) =1866509a(10) =6584260a(11) =23605163a(12) =85081408a(13) =306598781a(14) =1103114341a(15) =3965858837a(16) =14265857551a(17) =51394273661a(18) =185496356237a(19) =670659535731
External references
- oeis: A223948