Unmatched value maps: number of n X 2 binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 n X 2 array.
A218836
Unmatched value maps: number of n X 2 binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 n X 2 array.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =21a(4) =65a(5) =200a(6) =616a(7) =1897a(8) =5842a(9) =17991a(10) =55405a(11) =170625a(12) =525456a(13) =1618192a(14) =4983377a(15) =15346786a(16) =47261895a(17) =145547525a(18) =448227521a(19) =1380359512a(20) =4250949112a(21) =13091204281a(22) =40315615410a(23) =124155792775a(24) =382349636061
External references
- oeis: A218836