Number of n X 1 0..2 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 2 0..2 array without adjacent equal elements in the latter.

A229514

Number of n X 1 0..2 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 2 0..2 array without adjacent equal elements in the latter.

Terms

    a(0) =3a(1) =7a(2) =17a(3) =39a(4) =91a(5) =211a(6) =491a(7) =1141a(8) =2653a(9) =6167a(10) =14337a(11) =33329a(12) =77481a(13) =180121a(14) =418731a(15) =973431a(16) =2262953a(17) =5260727a(18) =12229707a(19) =28430619a(20) =66093171a(21) =153647981a(22) =357188221a(23) =830361871a(24) =1930357153a(25) =4487535937a(26) =10432255377a(27) =24252051409a(28) =56379179411

External references