87321

Appears in sequences

• a(n) = (10*n^3 - 9*n^2 + 2*n)/3 + 1.at n=30A034721
• Numbers k with property that 19*k + {2,4,8,10} are two pairs of consecutive twin primes.at n=18A152926
• a(n) = (2^p - p^2 - 1)/6 where p = prime(n).at n=5A166743