90096

Appears in sequences

• Numbers n such that 9*10^n + 6*R_n - 5 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=21A103103
• Row 3 of A328464: a(n) = A276156(8n - 4) / 6.at n=25A328466
• Number of finite regions in a complete bipartite graph where the vertices in the two parts are placed on opposite sides of a parabola at integer y coordinates y = 1, 2, ...n.at n=24A392443