67411

Properties

Appears in sequences

• Smallest prime factor of n!+1.at n=34A051301
• Smallest prime p associated with A064164(n).at n=20A064229
• Smaller of the two factors of the n-th semiprime number of the form m!+1.at n=14A082952
• Lesser prime factor of semiprimes in A089539.at n=33A089540
• Primes whose digit reversal is a triangular number.at n=19A115705
• Prime numbers p such that p +- ((p-1)/7) are primes.at n=30A137770
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (0, 0, 1), (1, 0, -1), (1, 1, -1)}.at n=10A148807
• Primes p such that 2*p^4-+15 are also prime.at n=28A174366
• Primes of the form 6*k^2 - 5.at n=31A201791
• a(n) = n^3 + 2*n^2 + 5*n + 11.at n=40A271779
• Primes of the form n^3 + 2n^2 + 5n + 11.at n=21A271840
• Initial member of 6 consecutive primes a, b, c, d, e, f such that both (f + a)/(d - c) and (e + b)/(d - c) are prime.at n=30A293619
• Primes p such that A001175(p) = (p-1)/9.at n=33A308794
• Primes p such that A001177(p) = (p-1)/9.at n=19A308802
• Prime numbersat n=6714