147449

Properties

Appears in sequences

• Primes of the form k^2 - 7.at n=32A028883
• Numerators of continued fraction convergents to sqrt(790).at n=8A042522
• Concatenation of n in base 2 up to base 10 and n in base 10 down to base 2 is prime, all numbers are interpreted as decimals.at n=23A054258
• Primes p such that p+7 == 0 (mod phi(p+7)).at n=36A067606
• Smallest prime obtained as a sum of n terms of a geometric progression + the common ratio, or 0 if no such terms exists. Smallest prime of the form (a +ar +ar^2 + ar^3 +... ) + r.at n=13A088121
• Expansion of (1-x+7x^2)/((1-x)(1-2x)).at n=15A154251
• List of primes p with following properties: p = prime(n-1) for some n, p+7 is a square and is equal to prime(n+1)-1.at n=4A158529
• Primes p such that p+2, (p^2-1)/2+p and (p^2+3)/2+3*p are also prime.at n=36A352948
• a(2*n) = 9*2^n - 7, a(2*n+1) = 3*2^(n+2) - 7.at n=28A354789
• Prime numbersat n=13630