122499

Appears in sequences

• a(n) = n * (6*n^2 + 6*n + 1).at n=26A094421
• Product of two consecutive odd numbers k, k+2 such that (k*(k+2))+-2 are primes.at n=13A174383
• Nonsquarefree integers m such that, for prime p, if p^k | m then 1+p^k | 1+m.at n=1A227348
• Composite integers k such that sigma(k) | (k + 1)*tau(k) where tau is number of divisors of k.at n=19A384493