32633

Properties

Appears in sequences

• Half-quartan primes: primes of the form p = (x^4 + y^4)/2.at n=14A002646
• Number of points in Z^4 of norm <= n.at n=9A055410
• Number of points in Z^n of norm <= 9.at n=4A055433
• Primes of the form 666*k - 1.at n=15A063472
• Class 7- primes.at n=13A081426
• Sophie Germain primes for which the reversal is also a Sophie Germain prime.at n=32A118573
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 0), (0, 0, -1), (0, 1, 0), (1, 1, 1)}.at n=8A150591
• a(n) = 74*n^2 - 1.at n=20A158744
• Smallest integer m such that phi(phi(m))^n + tau(phi(m))^n = phi(rad(m))^n, where n is the number of iterations of phi(phi), tau(phi) and phi(rad) functions.at n=7A175189
• a(n) = 8*n^3 - 449*n^2 + 7967*n - 45523.at n=36A253045
• Least prime q such that p(q*n) is prime, where p(.) is the partition function given by A000041.at n=33A257662
• Primes having only {2, 3, 6} as digits.at n=22A260126
• Primes of the form x^2 + y^2 with x > y such that x^2 - y^2 is a square and x^4 + y^4 is a prime.at n=4A282867
• Emirps p such that 2*p - reverse(p) is also an emirp.at n=22A358689
• Numbers whose square and cube taken together contain each decimal digit at least twice.at n=23A363909
• First member of the least set of 5 consecutive primes such that the sum of each pair of consecutive primes in this set is a multiple of n.at n=19A382700
• Primes k such that the concatenation of (b, k, b) and (k, b, k) are both prime, where b is the binary representation of k.at n=9A389801
• Prime numbersat n=3503