T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..3 nXk array.

A218242

T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..3 nXk array.

Terms

    a(0) =1a(1) =3a(2) =3a(3) =7a(4) =15a(5) =7a(6) =15a(7) =63a(8) =63a(9) =15a(10) =29a(11) =255a(12) =511a(13) =255a(14) =29a(15) =57a(16) =1017a(17) =4095a(18) =4095a(19) =1017a(20) =57a(21) =113a(22) =4065a(23) =32753a(24) =65535a(25) =32753a(26) =4065a(27) =113a(28) =225a(29) =16257

External references