845325
domain: N
Appears in sequences
- Number of length 7 1..(n+2) arrays with no leading or trailing partial sum equal to a prime.at n=10A254210
- Number of regular polygons that can be drawn with vertices on a centered hexagonal grid with side length n.at n=25A339483
- Odd nonsquares k for which A161942(k) >= k, where A161942 is the odd part of sigma.at n=22A348743
- Odd nondeficient numbers of the form p^(1+4k) * r^2, where p is prime of the form 1+4m, r > 1, and gcd(p,r) = 1.at n=22A386427