37223

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 2x + 7.at n=22A023275
• Least prime in A031938 (lesser of primes differing by 20) whose distance to the next 20-twin is 6*n.at n=1A052359
• Primes of the form n followed by the least k == 1 (mod n).at n=36A090920
• Expansion of (1+2x^2)/(1-x-4x^5).at n=23A098524
• Primes that are either single-digit primes or a concatenation of two earlier terms.at n=34A104179
• Primes with a prime number of digits, all of them prime, that add up to a prime.at n=34A110028
• Primes of the form k^2 - prime(k).at n=24A188831
• Smallest of the first four consecutive primes that comprise two sets of primes with difference 2*n.at n=9A226657
• Record values in A226657.at n=8A229021
• Numbers k such that 2*k + 1 divides 2^(k+1) - 1.at n=25A246648
• Primes 8k + 7 preceding the maximal gaps in A269519.at n=6A269520
• Number of compositions (ordered partitions) of n into quarter-squares (A002620).at n=19A282583
• Primes p such that p=prime(k), prime(k+1), and prime(k+2) end in the same digit.at n=40A328452
• a(1) = 1, a(2) = 2. For n > 2, a(n) is the least novel power of the greatest prime divisor of a(n-2) + a(n-1).at n=49A359874
• Prime numbersat n=3944