129315

Appears in sequences

• Expansion of 1/(1-x-x^2-x^10+x^12).at n=25A147659
• Numbers k such that {k^2 + 2, k^2 + 4} and {k^3 + 2, k^3 + 4} are twin prime pairs.at n=10A283698
• a(n) = Sum_{i=1..n} Sum_{j=1..n} Sum_{k=1..n} phi(i*j*k) / phi(k).at n=14A372662