51757

Appears in sequences

• Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 23.at n=29A051988
• Expansion of x*(1+9*x+2*x^2)/((1-x)*(1-3*x+x^2)).at n=9A121990
• Expansion of g.f. A(x) satisfying A(x)^3 = A( x^3/(1 - 3*x)^3 ) / (1 - 3*x).at n=10A361762