1,1

Table of n, a(n) for n=1..5.

(PARI) g(m, n, b) = { for(x=0, n, y=m+b^x+b%2; z=m+b^(x+1)+b%2; if(isprime(y)&isprime(z), print1(y", ") ) ) }

Cf. A108273.

Sequence in context: A139895 A167470 A152865 * A121999 A069530 A259032

Adjacent sequences: A108269 A108270 A108271 * A108273 A108274 A108275

nonn

Cino Hilliard, Jun 29 2005

approved