28109

Properties

Appears in sequences

• Primes whose digits can be arranged in increasing cyclic order - to form a substring of 123456789012345678901234567890...at n=41A068710
• Smallest member of a pair of consecutive twin prime pairs that have three primes between them.at n=33A089635
• Binomial transform of A045621.at n=9A134377
• Lesser of twin primes p1 such that p1+(p2^2-p1^2) and p2+(p2^2-p1^2) are prime numbers.at n=37A174922
• Square array read by antidiagonals, where the top row is the nonnegative integers and the other numbers are the sum of the neighbors in the preceding row.at n=64A217536
• Primes q = 4*p+1, where p == 2 (mod 5) is also prime.at n=45A221981
• Primes p such that p+2 and q are primes, where q is concatenation of binary representations of p and p+2: q = p * 2^L + p+2, where L is the length of binary representation of p+2: L=A070939(p+2).at n=39A232238
• Primes of the form 2*n^2 + 62*n + 29.at n=24A243891
• Lesser of twin primes P(k) and P(k+1) such that Sd(P(k)) + Sd(P(k+1)) = Sd(k) + Sd(k+1), where Sd(x) is the sum of digits of x.at n=4A277111
• Prime-indexed primes q such that prime(q) + q + 1 is a prime-indexed prime.at n=17A318292
• Prime numbersat n=3067