28029
domain: N
Appears in sequences
- Numbers k such that 7*5^k + 2 is a prime.at n=10A083092
- Semiprimes q such that q^2-4 and q^2+4 are also semiprimes.at n=22A173084
- Number of partitions of n with difference -7 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=44A242685
- Row 5 of A277710: Positions of 5's in A264977; positions of 10's in A277330.at n=47A277715