T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..2 nXk array.

A217645

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..2 nXk array.

Terms

    a(0) =3a(1) =3a(2) =3a(3) =9a(4) =9a(5) =9a(6) =17a(7) =27a(8) =27a(9) =17a(10) =37a(11) =91a(12) =163a(13) =91a(14) =37a(15) =77a(16) =293a(17) =877a(18) =877a(19) =293a(20) =77a(21) =163a(22) =959a(23) =5119a(24) =8363a(25) =5119a(26) =959a(27) =163a(28) =343a(29) =3121

External references