42437

Properties

Appears in sequences

• Primes of the form k^2 + 1.at n=35A002496
• A generalized partition function.at n=27A002598
• Primes p from A031924 such that A052180(primepi(p)) = 31.at n=15A052237
• Primes of form 4*p^2 + 1, p prime.at n=9A052292
• Numbers whose divisors have the form m^k + 1, k>1.at n=37A054964
• a(n) = 4*prime(n)^2+1.at n=26A060429
• Primes of form n^2 + mu(n), where mu is A008683.at n=10A062459
• Generating function: 1/((1-x)*(1-x^2)^2*(1-x^3)^3*(1-x^4)^4).at n=28A064349
• Primes p such that (p-1) and the period length of 1/p are both squares.at n=18A076516
• Primes p such that all prime factors of p-1 have exponent 2.at n=14A089195
• Primes from merging of 5 successive digits in decimal expansion of e.at n=26A104846
• Primes p such that pi(p) is obtained by dropping one of the digits of p in decimal expansion.at n=3A114924
• Divisorial primes: Primes p such that p = 1 + Product_{d|n} d for some n (ordered by n).at n=16A118370
• Primes of the form 4*k^2 + 1.at n=34A121326
• Primes p such that continued fraction of (1 + sqrt(p))/2 has period 3.at n=56A146348
• Primes p such that p+-2 and p+-3 are not squarefree.at n=18A153214
• Primes which are within 1 of a square number.at n=36A163588
• List of primes of the form x^2+y^2 such that tau(x^2+y^2) = bigomega(x*y).at n=24A174024
• Primes p such that the order of 2 mod p is a square.at n=37A213049
• Primes p with same last three digits as k, where prime(k) = p.at n=3A232104