32569

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 4x + 3.at n=15A023311
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 27.at n=6A031615
• Starting positions of strings of 3 0's in the decimal expansion of Pi.at n=29A050202
• Smallest n-digit prime whose square is a concatenation of two n-digit primes (no leading zeros allowed), 0 if no such prime.at n=4A059017
• Primes of the form 16*m^2 + 169, m=1,2,3,...at n=16A087862
• Primes of the form prime(n)^2 - prime(n+1) - 1.at n=19A097938
• 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, 1), (0, 0, 1), (0, 1, 0), (1, 0, -1)}.at n=9A149895
• Number of nondecreasing arrangements of 6 numbers x(i) in -(n+4)..(n+4) with the sum of sign(x(i))*x(i)^2 zero.at n=23A188006
• Primes p such that p^2 is the concatenation of two k-digit primes where k is half the length of p^2.at n=18A248046
• Smaller term p1 of the first of two consecutive cousin prime pairs (p1,p1+4) and (p2,p2+4) such that the distance (p2-p1) is a square.at n=33A339084
• Primes dividing terms of A231830.at n=31A362252
• Prime numbersat n=3495