Number of length n+3 0..6 arrays with no four elements in a row with pattern aabb (possibly a=b) and new values 0..6 introduced in 0..6 order.
A242547
Number of length n+3 0..6 arrays with no four elements in a row with pattern aabb (possibly a=b) and new values 0..6 introduced in 0..6 order.
Terms
- a(0) =13a(1) =43a(2) =166a(3) =712a(4) =3339a(5) =16968a(6) =92360a(7) =532175a(8) =3210136a(9) =20066475a(10) =128848615a(11) =843831762a(12) =5605476437a(13) =37615886287a(14) =254237240993
External references
- oeis: A242547