T(n,k)=Number of nXk 0..7 arrays with no element equal to another at a city block distance of exactly two, and new values 0..7 introduced in row major order.
A222894
T(n,k)=Number of nXk 0..7 arrays with no element equal to another at a city block distance of exactly two, and new values 0..7 introduced in row major order.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =3a(4) =7a(5) =3a(6) =7a(7) =34a(8) =34a(9) =7a(10) =20a(11) =389a(12) =991a(13) =389a(14) =20a(15) =67a(16) =7145a(17) =84521a(18) =84521a(19) =7145a(20) =67a(21) =255a(22) =179465a(23) =11047723a(24) =46407465a(25) =11047723a(26) =179465a(27) =255a(28) =1080a(29) =5426201
External references
- oeis: A222894