49277

Properties

Appears in sequences

• Primes of the form k^2 - 7.at n=22A028883
• Prime Friedman numbers.at n=38A112419
• Numbers k such that k and k^2 use only the digits 2, 4, 7, 8 and 9.at n=23A137107
• Numerator of Sum_{k=0..n} A159990(k)/A159991(k).at n=3A159992
• Primes p such that (p reversed)-10 is a square.at n=30A167475
• Let a(1)=1; for n>1 a(n)=nextprime(a(n-1)+(a(n-1)+1)/4).at n=40A175953
• Prime numbersat n=5064