Number of n X 2 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1) X 3 0..1 array.
A228980
Number of n X 2 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1) X 3 0..1 array.
Terms
- a(0) =4a(1) =16a(2) =64a(3) =252a(4) =992a(5) =3900a(6) =15328a(7) =60228a(8) =236624a(9) =929580a(10) =3651712a(11) =14344836a(12) =56349296a(13) =221349132a(14) =869490976a(15) =3415475172a(16) =13416415184a(17) =52701313836a(18) =207017071552a(19) =813187592388
External references
- oeis: A228980