1810836

Appears in sequences

• Expansion of (1 - 2*x + 5*x^2) / (1 - 3*x)^2.at n=11A167682
• Numbers k such that k, A001414(k) and A083345(k) are all multiples of 3, where A001414 is fully additive with a(p) = p, and A083345 is the numerator of the fully additive function with a(p) = 1/p.at n=16A373476