OFFSET
0,6
LINKS
EXAMPLE
There are 11 primes (2,3,5,7,11,13,17,19,23,29,31) in range [0,32], while there are only 8 irreducible GF(2)[X]-polynomials in the same range: (2,3,7,11,13,19,25,31), thus a(5)=3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 03 2004
STATUS
approved