18899

Properties

Appears in sequences

• Incorrect duplicate of A297408.at n=16A007355
• Primes that remain prime through 3 iterations of function f(x) = 7x + 6.at n=25A023290
• Primes related to the nondecreasing subsequence of A007605 (sums of digits of primes).at n=39A067954
• Primes with digit sum = 35.at n=1A106770
• Records in A034694.at n=23A120856
• Records in A066674.at n=19A125879
• Least number k such that A070635(k) = n.at n=34A138791
• Least prime, p, such that p mod (sum of the digits of p) = n.at n=34A138792
• Primes in A153257.at n=9A140719
• Primes congruent to 19 mod 59.at n=40A142746
• Primes congruent to 50 mod 61.at n=35A142848
• a(n) = n^3 - (n+1)^2.at n=27A153257
• Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,2 4,3 5,4 6,4 polyhexes in any orientation on a planar nXnXn triangular grid.at n=7A155351
• a(n) = 900*n - 1.at n=20A158409
• Primes p such that q*p+-Mod(p,q) are primes, for q=7.at n=27A178387
• There appear to be at least n primes in the range (x-2*sqrt(x), x] for all x >= a(n).at n=20A189027
• Least happy number with next happy number of distance n.at n=38A193573
• Indices of record values in A216476.at n=28A216502
• Primes p such that if q is the next prime after p then the concatenation of p with q and the concatenation of q with p are both primes.at n=33A225575
• Record values in A061026, the smallest number m such that n divides phi(m), where phi is Euler's totient function.at n=21A233517