33181

Properties

Appears in sequences

• Reflectable emirps.at n=29A007628
• Numbers n such that n is a substring of its square in base 3 (written in base 10).at n=31A018827
• Primes p whose period of reciprocal equals (p-1)/7.at n=25A056212
• First occurrence prime gaps of the primes in sequence A002313 (Real primes with corresponding complex primes). a(0) = 2 with length of gap 3. For n>0 the size of the gap in the sequence is 4n, a(n) is the starting prime of the gap.at n=27A084160
• Primes that are the sum of two squares and which set a record for the gap to the next prime of that form.at n=12A084161
• Row sums of triangle A101224, which is related to the Flavius sieve (A000960).at n=33A101105
• Binary transpose primes. Integers of k^2 bits which, when written row by row as a square matrix and then read column by column, are primes once transformed.at n=42A155967
• Number of (n+2) X 5 binary arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.at n=20A190027
• Primes p of the form 420k + 1 for some k.at n=32A217587
• Sequence of distinct least nonnegative numbers such that the average of the first n terms is a Fibonacci number.at n=31A249265
• Primes p such that A001175(p) = (p-1)/7.at n=21A308792
• Primes which yield again a prime when the digits are taken according to the lexicographically first superpermutation of corresponding order and of minimal length.at n=34A332088
• Emirps p such that (p*q) mod (p+q) is also an emirp, where q is the digit reversal of p.at n=40A355651
• Prime numbersat n=3556