33131

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 52.at n=6A031730
• a(n) = 49*n^2 + 7.at n=25A158481
• List of primitive words over the alphabet {1,3}.at n=47A213970
• Replacing each digit d in decimal expansion of n with d^2 yields a prime at each step when done recursively three times.at n=30A316604
• Expansion of e.g.f. exp(exp(-x)/(1 - x) - 1).at n=8A321989
• Number of strict compositions of n with all adjacent parts (x, y) satisfying x < 2y and y < 2x.at n=58A342341