101293

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 48.at n=3A031636
• Triangle T(n,k) arising from enumeration of permutations with ordered orbits, read by rows (1<=k<=n).at n=49A059418
• Smaller of two consecutive prime numbers such that p1*p2*d - d = average of twin prime pairs, d (delta) = p2 - p1.at n=13A153378
• Primes n that are concatenation of two 3-digit primes p<q.at n=6A168529
• a(1)=5; thereafter a(2n) = nextprime(a(2n-1)^2), a(2n+1) = nextprime(floor(2*a(2n)/(a(2n-1) + 1))) where nextprime(.) is A007918(.).at n=28A181616
• Primes that are the concatenation of two 3-digit primes.at n=6A255976
• Lexicographically largest increasing sequence of primes for which the continued square root map (see A257574) produces the decimal expansion of e (Euler's number).at n=40A257764
• Primes that are the concatenation p|q of two primes p and q with the same number of digits, where r = (p+q)/2, r|q and p|r are all primes.at n=2A358420
• Prime numbersat n=9702