27749

Properties

Appears in sequences

• Convolution of odd numbers and A000201.at n=36A023658
• Numbers n such that 117*2^n-1 is prime.at n=44A050584
• Numbers k such that k^2 contains only digits {0,1,7}, not ending with zero.at n=1A058419
• Numbers k such that 5*2^k - 3 is prime.at n=45A058588
• Lesser of twin balanced primes (A090403).at n=13A096694
• Primes A005382(n) + A005384(n) - 1 with a twin prime A005382(n) + A005384(n) + 1.at n=34A099109
• Greatest prime factor of prime(n)! / prime(n)# + 1.at n=7A103892
• Primes p such that (12*p - 1, 12*p + 1) and (18*p - 1, 18*p + 1) are twin primes.at n=5A138660
• Primes p such that the multiplicative order of 2 modulo p is (p-1)/7.at n=25A152307
• Primes of the form 6n^2 + 5.at n=24A201600
• Number of 7's in the last section of the set of partitions of n.at n=53A206557
• Primes p such that q = p^2 + 10 and q^2 + 10 are also prime.at n=31A243368
• Number of (6+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=26A250660
• Greatest of 4 consecutive primes with consecutive gaps 2, 4, 6.at n=31A290706
• Expansion of 2/((1 - x)*(3 - theta_3(x))), where theta_3() is the Jacobi theta function.at n=28A303667
• A sequence of integers from an additive problem with prime numbers.at n=28A348472
• Number of regions formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius.at n=27A371253
• Prime numbersat n=3027