142170

Appears in sequences

• Number of fixed points under n-fold inflation for the substitution rule a->abc, b->ab, c->b that underlies the Kolakoski (3,1) sequence.at n=14A080204
• Triangular sequence T(n, m) = (p^(n-m)*q^m + p^m*q^(n-m))*A(n+1, m+1), where A(n, m) = (3*n -3*k +1)A(n-1, k-1) + (3*k-2)A(n-1, k), A(n,1)=A(n,n)=1, p=2 and q=3.at n=16A154698
• Triangular sequence T(n, m) = (p^(n-m)*q^m + p^m*q^(n-m))*A(n+1, m+1), where A(n, m) = (3*n -3*k +1)A(n-1, k-1) + (3*k-2)A(n-1, k), A(n,1)=A(n,n)=1, p=2 and q=3.at n=19A154698
• Number of length n+6 0..4 arrays with no seven consecutive terms having the maximum of any two terms equal to the minimum of the remaining five terms.at n=1A250055
• T(n,k)=Number of length n+6 0..k arrays with no seven consecutive terms having the maximum of any two terms equal to the minimum of the remaining five terms.at n=11A250059
• Number of length 2+6 0..n arrays with no seven consecutive terms having the maximum of any two terms equal to the minimum of the remaining five terms.at n=3A250061
• Number of orthogonal rectangles with vertices on an n X n square grid of points but with no vertices on the grid's diagonals.at n=30A285956
• Triangle read by rows: T(n,k) is the number of n-node Stanley graphs containing exactly k isolated points, n>=0, 0<=k<=n.at n=59A383655