126127

Properties

Appears in sequences

• Primes formed by concatenating n with n+1.at n=18A030458
• Primes whose decimal expansion is a concatenation of two or more consecutive increasing numbers (no leading zeros allowed).at n=19A052087
• Primes from merging of 6 successive digits in decimal expansion of the Champernowne Constant.at n=15A104949
• Primes formed by concatenating k with k+1, where k+1 is a prime.at n=9A134428
• Primes that are a concatenation of 2*k and 2*k+1 or 2*k and 2*k-1 for some k.at n=34A154530
• Slowest growing sequence of primes having the semiprime-pairwise property: for any i,j, a(i)+a(j) is semiprime.at n=6A164979
• Primes whose base-9 representation also is the base-4 representation of a prime.at n=35A235619
• Septic artiads: primes p congruent to 1 mod 14 for which all solutions of the congruence x^3 + x^2 - 2x - 1 == 0 (mod p) are 7th power residues.at n=33A270800
• Primes formed from the concatenation of n and nextprime(n).at n=31A280376
• Expansion of e.g.f. exp( Sum_{k>=0} x^(2*k+5) / (2*k+5)! ).at n=15A365896
• Numerators of the partial sums of the reciprocals of the sum of unitary divisors function (A034448).at n=19A379513
• Start the sequence S with a(1) = 1008973 and extend S with a(n)/2 when a(n) is even, otherwise with a(n) + the smallest prime not yet added.at n=7A388141
• Prime numbersat n=11832