151342

Appears in sequences

• Number of consecutive runs of just 1 odd nonprime congruent to 3 mod 4 below 10^n.at n=5A093184
• Expansion of Sum_{i>=1} mu(i)^2*x^i/(1 - x^i) / Product_{j>=1} (1 - mu(j)^2*x^j), where mu() is the Moebius function (A008683).at n=41A281572