42703

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 2x + 5.at n=23A023304
• Numbers p such that p = (prime(n)+ prime(n+3))/2 is prime for prime indices n=2, 3, 5...at n=35A098039
• Smallest odd prime p such that n=(p-1)/ord_p(3).at n=32A101209
• Primes in A103374.at n=21A103384
• Number of isomorphism classes of 5-regular multigraphs of order 2n, loops allowed.at n=3A129431
• Numbers k such that |2^(2*k-27)-27| is prime.at n=12A138598
• Primes p such that continued fraction of (1 + sqrt(p))/2 has period 12 : primes in A146336.at n=26A146357
• Number of n X 3 binary arrays with all 1s connected, all corners 1, and no 1 having more than two 1s adjacent.at n=14A163734
• Square array T(n,k), read by upward antidiagonals, counting isomorphism classes of k-regular multigraphs of order n, loops allowed.at n=83A167625
• Primes 8k + 7 at the end of the maximal gaps in A269519.at n=7A269521
• Primes p that set a new record for the size of the smallest prime q such that q^(p-1) == 1 (mod p^2), i.e., such that p is a base-q Wieferich prime.at n=32A289379
• Smallest prime p such that the multiplicative order of 9 modulo p is 2*n, or 0 if no such prime exists.at n=32A372799
• Prime numbersat n=4465