55679

Appears in sequences

• Numerator of Bernoulli(n, -4/7).at n=4A158533
• Numerator of Sum_{k=1..n} 1/lambda(k), where lambda(k) is the Carmichael's lambda function.at n=22A211306
• Numbers k such that 3*10^k + 37 is prime.at n=25A294122
• Expansion of (1/x) * Series_Reversion( x * (1-7*x)^2 / (1-6*x) ).at n=4A371368