26773

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 67.at n=31A020406
• Numerical distance between m-th and (m+n)-th spheres in loxodromic sequence of spheres in which each 5 consecutive spheres are in mutual contact.at n=19A027674
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 14.at n=13A031602
• Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 23.at n=21A051988
• a(n) = 11 + floor((2 + Sum_{j=1..n-1} a(j))/3).at n=27A120156
• G.f.: A(x) = Sum_{n>=0} log( Sum_{k>=0} fibonacci(k+1)^n*x^k )^n / n!.at n=8A136726
• Composite numbers generated by the Euler polynomial x^2 + x + 41.at n=33A145292
• Semiprimes generated by the Euler polynomial x^2 + x + 41.at n=33A228183
• Number of intersection points formed by drawing the line segments connecting any two lattice points of an n X m convex lattice polygon written as triangle T(n,m), n >= 1, 1 <= m <= n.at n=20A288180
• Number of nodes in the graph AC(n,n).at n=5A343993