111385

Appears in sequences

• Numbers n such that 6*10^n + 3*R_n + 4 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=22A103033
• G.f. satisfies A(x) = 1/(1-x) + x^3*(1-x)*A(x)^5.at n=14A364597