69191

Properties

Appears in sequences

• Smaller of two consecutive primes whose sum is a square.at n=23A061275
• Smaller member of a twin prime pair with a square sum.at n=11A069496
• Primes of the form 8*k^2 - 1.at n=37A090684
• Lesser of consecutive primes whose sum is a perfect power (A001597).at n=29A091624
• Primes among partial sums of floor(Pi*prime(k)), k=1,2,3,....at n=6A117503
• Twin prime pairs that sum to a power.at n=26A119768
• Lesser p of twin primes (p,q) such that there exists an integer between sqrt(2p) and sqrt(2q).at n=29A145701
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (0, 1, -1), (1, 0, 0), (1, 1, 0)}.at n=10A149876
• a(n) = 72*n^2 - 1.at n=30A158738
• Primes p such that p + 2, p + 6, and the concatenation p (p+2) (p+6) is prime.at n=19A174858
• Prime numbers p such that x^2 + x + p produces primes for x = 0..3 but not x = 4.at n=33A210362
• Twin prime pairs which sum to perfect squares.at n=22A232878
• Primes formed by an m-digit prime concatenated with its last (m-1) digits, for m > 1.at n=35A252667
• Smaller member of a twin prime pair with a perfect power sum.at n=13A270231
• Prime numbers p such that all prime factors of p+1 and p-1 are smaller than the cube root of p.at n=28A283791
• Primes of the form prime(i)*prime(i+1)+prime(i+2)*prime(i+3)+...+prime(k-1)*prime(k).at n=21A340465
• Prime numbersat n=6870