27611

Properties

Appears in sequences

• Prime(n)*...*a(n) is the least product of consecutive primes which is non-deficient.at n=36A007686
• Prime(n)*...*a(n) is the least product of consecutive primes which is abundant.at n=36A007708
• Primes of the form 2*n^2 + 2*n - 1.at n=38A098828
• Sequence of Chen primes of the form (x*n+1)*(y*n+1)-2 in the order generated by A112229.at n=12A112230
• Sequence of Chen primes of the form (x*n+1)*(y*n+1)-2 in the order generated by A112229.at n=25A112230
• Numbers k such that k and k^2 use only the digits 1, 2, 3, 6 and 7.at n=12A136979
• Largest element of a set of n primes with the property that the pairwise averages are all distinct primes, having the smallest largest element (A115631).at n=10A155463
• Expansion of (1+12*x+28*x^2+12*x^3+x^4)/(1-x)^5.at n=10A160767
• Number of (n+1)X(n+1) 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=1A205019
• Number of (n+1)X3 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=1A205021
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=4A205027
• Number of (n+6)X8 0..1 matrices with each 7X7 subblock idempotent.at n=5A224582
• Number of (n+6)X12 0..1 matrices with each 7X7 subblock idempotent.at n=1A224586
• T(n,k)=Number of (n+6)X(k+6) 0..1 matrices with each 7X7 subblock idempotent.at n=22A224588
• T(n,k)=Number of (n+6)X(k+6) 0..1 matrices with each 7X7 subblock idempotent.at n=26A224588
• Primes p congruent to 11 mod 12 such that (p - 1)/2 does not divide the numerator of the Bernoulli number B(p-1).at n=18A232040
• Primes p such that phi(phi(p-1)+1) = phi(phi(p-2)+1).at n=20A271659
• Least prime pn such that there is a set p1 < p2 < ... < pn of primes such that, for any distinct p and q in the set, (p + q)/2 is prime.at n=11A381322
• Lesser of sexy happy primes.at n=37A387258
• Prime numbersat n=3013