47431

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 6x + 1.at n=25A023287
• Primes with 12 as smallest positive primitive root.at n=15A061325
• Primes of the form 8*k^2 - 1.at n=31A090684
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A202871; by antidiagonals.at n=29A202872
• Primes p whose smallest positive primitive root (mod p) is not squarefree.at n=15A205581
• Primes p = 1 mod 6 such that all three iterations p=(6p+1) give primes = 1 mod 6.at n=13A210686
• Primes of the form 43*n^2 - 537*n + 2971 in order of increasing nonnegative values of n.at n=38A272285
• Prime numbers p such that all prime factors of p+1 and p-1 are smaller than the cube root of p.at n=20A283791
• a(n) = n*A340339(n)+b, where b = 1 if n is even or 2 if n is odd.at n=42A340340
• Sum of the legs of the unique primitive Pythagorean triple whose inradius is A000217(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=17A383834
• Expansion of g/(1 - x^2*g), where g = 1+x*g^3 is the g.f. of A001764.at n=8A391058
• Prime numbersat n=4891