505521

Appears in sequences

• Squares with initial digit '5'.at n=33A045788
• a(n+1) is the smallest square > a(n) such that every concatenation (n > 1) is a prime.at n=12A087352
• Squares representable as b! + triangular(c).at n=41A230365
• Discriminants with exactly 2 associated cyclic cubic fields.at n=25A343002
• Discriminants with at least 2 associated cyclic cubic fields.at n=25A343024