Number of (n+2) X 4 binary arrays avoiding patterns 001 and 110 in rows, columns and nw-to-se diagonals.
A202441
Number of (n+2) X 4 binary arrays avoiding patterns 001 and 110 in rows, columns and nw-to-se diagonals.
Terms
- a(0) =138a(1) =226a(2) =376a(3) =574a(4) =836a(5) =1162a(6) =1568a(7) =2054a(8) =2636a(9) =3314a(10) =4104a(11) =5006a(12) =6036a(13) =7194a(14) =8496a(15) =9942a(16) =11548a(17) =13314a(18) =15256a(19) =17374a(20) =19684a(21) =22186a(22) =24896a(23) =27814a(24) =30956a(25) =34322a(26) =37928a(27) =41774a(28) =45876a(29) =50234
External references
- oeis: A202441