28619

Properties

Appears in sequences

• Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2,6,4]; short d-string notation of pattern = [264].at n=29A078848
• Primes of the form p = prime(k) = (prime(k+3)+prime(k-1))/2.at n=30A126238
• Prime numbers p such that p^3 - (p+1)^2 and p^3 + (p+1)^2 are both primes.at n=28A137476
• Engel expansion of beta = 3/(2*log(alpha/2)); alpha = A195596.at n=15A195601
• Prime p such that p and p+2 are twin primes and p^2+p-1 p^2+p+1 are also twin primes.at n=11A228968
• Primes p such that p+2, p+8, and p+12 are all prime.at n=37A233540
• Lesser of twin prime pairs of the form (40n - 21, 40n - 19).at n=40A250025
• Partial sums of A299279.at n=22A299280
• Prime powers of the form 12*c^2 + 4*c + 3, where c is an arbitrary integer.at n=34A309027
• Primes p such that 4*p+3, 6*p+5 and 8*p+7 are all primes.at n=35A329551
• Primes whose position in the Wythoff array is immediately followed by a prime both in the next column and the next row.at n=17A352537
• Consecutive states of the linear congruential pseudo-random number generator for the Texas Instruments TI99 when started at 1.at n=22A384221
• Prime numbersat n=3115