1,1

prime(2^12)-prime(2^11) + 1 = 21011 = prime.

f(n)= for(x=1, n, y=prime(2^x)-prime(2^(x-1))+1; if(isprime(y), print1(y", ")))

Adjacent sequences: A092259 A092260 A092261 this_sequence A092263 A092264 A092265

Sequence in context: A013497 A128029 A081650 this_sequence A032015 A075736 A030426

hard,nonn

Cino Hilliard (hillcino368(AT)gmail.com), Feb 20 2004