42547

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 49 ones.at n=3A031817
• Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and pyramid weight k.at n=50A129163
• Expansion of g.f. A(x) satisfying A(x)^3 = A( x*A(x)^2/(1 - A(x)) ).at n=10A372531
• Expansion of g/(1 + x^3*g), where g = 1+x*g^3 is the g.f. of A001764.at n=8A387676