148997

Properties

Appears in sequences

• Primes of form 4*p^2 + 1, p prime.at n=12A052292
• Primes of form n^2 + mu(n), where mu is A008683.at n=14A062459
• For n > 1, a(n) is the smallest number such that n-th concatenation is prime and the smallest palindrome beginning with (but not equal to) this concatenation is also prime.at n=31A088090
• Primes p such that all prime factors of p-1 have exponent 2.at n=19A089195
• Divisorial primes: Primes p such that p = 1 + Product_{d|n} d for some n (ordered by n).at n=26A118370
• List of primes of the form x^2+y^2 such that tau(x^2+y^2) = bigomega(x*y).at n=35A174024
• Divisorial primes: primes p of the form p = 1 + Product_{d|k} d for some k.at n=13A258455
• Divisorial primes p of the form p = 1 + k^2 where k^2 = Product_{d|k} d= A007955(k) for some k.at n=12A258896
• Numbers of the form n^2+1 that divide 4^n-1.at n=6A273999
• Primes p of the form k^2 + 1 that divide 4^k - 1.at n=4A274000
• Prime numbersat n=13757