[7,17,37,47,67,89,97,103,107,113,127,131,137,151,
 157,167,179,181,191,197,223,227,233,257,277,281,
 283,293,307,311,317,337,347,359,367,373,383,389,
 397,419,421,439,443,457,461,463,467,479,487,499,
 509,523,541]