33931

Properties

Appears in sequences

• Smallest prime p having n different cycles in decimal expansions of k/p, k=1..p-1.at n=38A054471
• Fourth term of strong prime sextets: p(m-2)-p(m-3) > p(m-1)-p(m-2) > p(m)-p(m-1) > p(m+1)-p(m) > p(m+2)-p(m+1).at n=10A054816
• Primes p such that p*(p-2) divides 3^(p-1)-1.at n=10A081764
• Balanced primes of order six.at n=29A096698
• Primes p such that p + googol is prime.at n=24A108250
• Number of permutations of length n which avoid the patterns 3421, 4123, 4312; or avoid the patterns 2341, 3142, 3214.at n=9A116837
• Primes in A005891 = Centered pentagonal numbers: (5n^2 + 5n + 2)/2.at n=19A145838
• Primes of the form 8*n^2 + 2*n + 1.at n=28A188382
• Primes of the form 2*n^2 + 34*n + 15.at n=11A217494
• Numbers n such that (7^n + 4^n)/11 is prime.at n=6A218373
• Primes p such that f(f(p)) is prime, where f(x) = x^4 + x^3 + x^2 + x + 1 = A053699(x).at n=35A237445
• Larger of emirp pairs that are merely reversals of their end digits.at n=26A263242
• Prime numbers in A317298.at n=29A306362
• Number of connected non-regular multigraphs with n nodes of degree up to n.at n=6A319896
• Third Moebius transform of A007716. Number of non-isomorphic aperiodic multiset partitions of weight n whose parts have relatively prime periods and whose dual is also an aperiodic multiset partition.at n=10A321390
• Primes p such that (q*s-p*r)/2 and |p*s-q*r|/2 are both prime, where p,q,r,s are consecutive primes.at n=38A341802
• a(n) = Sum_{k=0..floor(n/4)} Stirling2(n - 3*k,n - 4*k).at n=21A357926
• a(n) = Sum_{k=1..n} (-1)^(k-1) * binomial(floor(n/k)+3,4).at n=28A366659
• Left-truncatable happy numbers: every suffix is a happy number and no digits are zero.at n=24A383639
• Prime numbersat n=3633