Number of n X 3 binary arrays with every 1 immediately preceded by 0 to the left or above.
A203357
Number of n X 3 binary arrays with every 1 immediately preceded by 0 to the left or above.
Terms
- a(0) =3a(1) =20a(2) =102a(3) =565a(4) =3042a(5) =16538a(6) =89610a(7) =486103a(8) =2635899a(9) =14295131a(10) =77522409a(11) =420410296a(12) =2279906481a(13) =12364072580a(14) =67051079697a(15) =363621959233
External references
- oeis: A203357