Number of n X 7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 1 1 vertically.
A209223
Number of n X 7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 1 1 vertically.
Terms
- a(0) =40a(1) =1600a(2) =1296a(3) =3312a(4) =6900a(5) =15984a(6) =38232a(7) =80400a(8) =197976a(9) =449228a(10) =1002540a(11) =2382720a(12) =5427180a(13) =12493160a(14) =28565504a(15) =66402540a(16) =153375600a(17) =346691720a(18) =810423876a(19) =1869448176a(20) =4247091288a(21) =9846872812a(22) =22767034560a(23) =52106780512a(24) =119650563196
External references
- oeis: A209223