198221

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 10x + 9.at n=34A023329
• Multiplicity of irreducible character IRR2 of Monster simple group in n-th head character.at n=42A055771
• Primes p for which h1(p)/G(p) has a record value.at n=15A309520
• Primes p such that p+2, p*(p+1)/2-2 and p*(p+1)/2+2 are also primes.at n=39A349336
• Prime numbersat n=17838