71993

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 3x + 4.at n=30A023278
• 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 41.at n=5A031629
• Numbers such that every cyclic permutation is a prime.at n=38A068652
• Primes of the form 16*m^2 + 169, m=1,2,3,...at n=21A087862
• Primes p such that none of p-2, p-1, p+1, and p+2 is squarefree.at n=29A153215
• Smallest of 3 consecutive prime numbers such that p1*p2*p3*d1*d2=average of twin prime pairs; p1,p2,p3 consecutive prime numbers; d1(delta)=p2-p1, d2(delta)=p3-p2.at n=33A153409
• Number of 0..n arrays x(0..7) of 8 elements with zero 5th differences.at n=29A200275
• Primes of the form 9n^3-7.at n=3A200964
• Primes of the form 5n^2 - 7.at n=25A201788
• Cyclic primes that are not absolute primes (A003459).at n=16A204844
• Indices of primes in the 7th-order Fibonacci number sequence, A060455.at n=47A253318
• Circular primes that are not repunits.at n=37A293663
• Primes p such that exactly five numbers among all circular permutations of the digits of p are prime.at n=5A344629
• Prime numbersat n=7127