60582

Appears in sequences

• E-trees with exactly 3 colors.at n=7A007144
• a(n) = the number of squares with at most n digits and first digit 1.at n=10A083379
• Triangle, read by rows, where the g.f. of column k, C_k(x), is defined by the recurrence: C_k(x) = [ 1 + Sum_{n>=k+1} C_n(x)*x^(n-k) ]^(k+1) for k>=0.at n=28A127126
• Column 0 of triangle A127126.at n=7A127127
• G.f. satisfies: A(x) = 1 + x*A(x)^2*A(2x)^2.at n=5A168603
• Number of integer partitions of the n-th semiprime into semiprimes.at n=46A338902