1,1
Table of n, a(n) for n=1..6.
3^1 + 20 = 23, 3^2 + 20 = 29.
(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. A108258.
Sequence in context: A108111 A085713 A102904 * A338324 A232725 A045120
Adjacent sequences: A108246 A108247 A108248 * A108250 A108251 A108252
nonn
Cino Hilliard, Jun 29 2005
approved