Unmatched value maps: number of 2 X n binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..2 2 X n array.
A219411
Unmatched value maps: number of 2 X n binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..2 2 X n array.
Terms
- a(0) =1a(1) =7a(2) =28a(3) =98a(4) =351a(5) =1261a(6) =4523a(7) =16233a(8) =58268a(9) =209132a(10) =750597a(11) =2693993a(12) =9669101a(13) =34703683a(14) =124556124a(15) =447048462a(16) =1604516243a(17) =5758821685a(18) =20669175143a(19) =74184412085a(20) =266257698140a(21) =955634207080
External references
- oeis: A219411