T(n,k)=Number of length n+3 0..k arrays with no four elements in a row with pattern aabb (possibly a=b) and new values 0..k introduced in 0..k order.
A242549
T(n,k)=Number of length n+3 0..k arrays with no four elements in a row with pattern aabb (possibly a=b) and new values 0..k introduced in 0..k order.
Terms
- a(0) =6a(1) =12a(2) =9a(3) =13a(4) =32a(5) =15a(6) =13a(7) =42a(8) =88a(9) =25a(10) =13a(11) =43a(12) =150a(13) =242a(14) =40a(15) =13a(16) =43a(17) =165a(18) =554a(19) =660a(20) =64a(21) =13a(22) =43a(23) =166a(24) =690a(25) =2072a(26) =1800a(27) =104a(28) =13a(29) =43
External references
- oeis: A242549