236952

Appears in sequences

• Lower triangular matrix T, read by rows, such that T(n,0) = 1 and T(n,k) = T(n-1,k) + T^2(n-1,k-1) for k>0, where T^2 is the matrix square of T.at n=37A097712
• Column 1 of triangle A097712.at n=7A097713
• Number of length n+3 0..5 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=27A248534
• G.f. A(x) satisfies: A(x) = 1/(1 + x*A(x)/(1 + x^2*A(x)/(1 + x^3*A(x)/(1 + x^4*A(x)/(1 + ...))))), a continued fraction.at n=14A301362