304910

Appears in sequences

• Numbers k such that sigma(phi(sigma(k))) = sigma(k).at n=36A066471
• Expansion of x^3*(1+x+2*x^2+3*x^3+3*x^4+x^5)/(1-x^2-x^3)^3.at n=30A257595
• The seventh term of the greedy B_n set of natural numbers.at n=16A369819