346800

Appears in sequences

• If p and q are twin primes then pq + 1 is always divisible by 3, except for (p,q)=(3,5). Sequence gives values of (pq + 1)/3.at n=34A165280
• Expansion of (1/x) * Series_Reversion( x * (1 - x^2 * (1 + x)^2) ).at n=14A389294