237170

Appears in sequences

• Numbers k of the form p^2 + 1 (for prime p) where k^2 + 1 is also prime.at n=14A235053
• Integers of the form k^2 + 1, where k >= 1, that are the product of two other integers of the form k^2 + 1, where k >= 1.at n=32A372496