25127

Properties

Appears in sequences

• Primes of the form k^2 + k + 5.at n=40A027755
• Denominators of continued fraction convergents to sqrt(433).at n=11A041825
• McKay-Thompson series of class 35B for Monster.at n=46A058641
• a(n) is the n-th prime whose decimal expansion begins with the decimal expansion of n.at n=24A077345
• Number of compositions of n into a square number of parts.at n=18A103198
• Number of positive integers <= 10^n that are divisible by no prime exceeding 5.at n=24A106598
• Primes of the form 3*n^2 - 3*n + 11.at n=40A153502
• Number of binary strings of length n with no substrings equal to 0000 0101 or 0110.at n=15A164432
• Indices of pentagonal pyramidal numbers which are the sum of two other such numbers: k such that A002411(k) = A002411(i)+A002411(j) for some i,j>0.at n=37A172437
• Primes p such that 12*p^2-1 and 16*p^3-1 are also primes.at n=36A193051
• McKay-Thompson series of class 35B for the Monster group with a(0) = 1.at n=46A212253
• a(n) is the minimal odd odious k > 1, such that k^i, i=1,2,...,n, all are odious, or a(n)=0, if there is no such k.at n=13A230496
• a(n) is the minimal odd odious k > 1, such that k^i, i=1,2,...,n, all are odious, or a(n)=0, if there is no such k.at n=14A230496
• a(n) is the minimal odd odious k > 1, such that k^i, i=1,2,...,n, all are odious, or a(n)=0, if there is no such k.at n=15A230496
• Hash Parker numbers: Integers whose real 32nd root's first six nonzero digits (after the decimal point) rearranged in ascending order are equal to 234477.at n=11A309979
• Primes p such that 2*p+q and 2*p+r are prime, where q and r are the next two primes after p.at n=42A340225
• a(n) is the least number k such that {k, k^2, ..., k^n} are all odious numbers (A000069), but k^(n+1) is not.at n=15A345399
• First of four consecutive primes p,q,r,s such that 2*p+q+r+s, p+2*q+r+s, p+q+2*r+s and p+q+r+2*s are all prime.at n=6A349586
• Primes p, not safe primes, such that the smallest factor of (2^(p-1)-1) / 3 is equal to p.at n=32A360827
• Consecutive states of the linear congruential pseudo-random number generator (419*s + 6173) mod 29282 when started at s=1.at n=12A385036