50647

Properties

Appears in sequences

• a(1)=5; thereafter a(2n) = nextprime(a(2n-1)^2), a(2n+1) = nextprime(floor(2*a(2n)/(a(2n-1) + 1))) where nextprime(.) is A007918(.).at n=26A181616
• Primes of the form n^3-6.at n=4A201310
• Primes of the form p^q - 2q, where p and q are prime.at n=5A249180
• a(1) = 2; for n > 1 if n is even a(n) = gpf(1 + Product_{odd m,m<n}a(m)), while if n is odd a(n) = gpf(1 + Product_{even m,m<n}a(m)).at n=11A258581
• G.f. A(x) satisfies: A(x) = 1 + x + x^2 + x^3 + x^4*A(x)^2.at n=28A307971
• Prime numbersat n=5193