829883

Properties

Appears in sequences

• Number of subsets of { 1, ..., n } containing an arithmetic progression of length 4.at n=20A018789
• Smallest prime p of two consecutive primes, p < q, such that gcd(p+1, q+1) = 2n.at n=32A067604
• Primes p such that p + digitsum(p) = q^k for some prime q and k > 1 where digitsum(n) = A007953(n).at n=19A242368
• The first of three consecutive primes the sum of which is equal to the sum of three consecutive pentagonal numbers.at n=8A298251
• Primes p such that p + A007953(p) is the square of a prime.at n=15A307315
• Prime numbersat n=66156