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

A218810

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

Terms

    a(0) =1a(1) =3a(2) =1a(3) =7a(4) =15a(5) =1a(6) =15a(7) =61a(8) =57a(9) =1a(10) =29a(11) =249a(12) =481a(13) =225a(14) =1a(15) =57a(16) =993a(17) =3969a(18) =3843a(19) =895a(20) =1a(21) =113a(22) =3969a(23) =31741a(24) =63499a(25) =30719a(26) =3551a(27) =1a(28) =225a(29) =15871

External references