72893

Properties

Appears in sequences

• Primes of the form k^2 - 7.at n=26A028883
• Primes of the form pq - 6, where p and q are consecutive primes.at n=21A099775
• Primes in A028883, p=m^2-7, such that following prime is m^2+1.at n=5A157183
• Primes of the form A037074(k) - 6, where A037074(k) is a twin prime product.at n=9A162834
• Number of n X 3 binary arrays with all 1s connected, a path of 1s from upper left corner to lower right corner, and no 1 having more than two 1s adjacent.at n=13A163686
• Integers k such that 2^(k-1) == 1 (mod k) and 2^(m-1) == 1 (mod m), where m = k*(A000265(k-1) - 1) + 1 and A000265 gives the odd part of its argument.at n=33A187849
• Numbers that are partial sums of the reverses of the sequence of primes and are reverses of primes.at n=15A381245
• Beginning with 13, least prime such that concatenation of first n terms and its digit reversal both are primes.at n=38A382898
• Prime numbersat n=7206