[31,211,571,661,751,1021,1201,1291,1381,1471,1741, 1831,2011,2281,2371,2551,2731,3001,3181,3271,3361, 3541,3631,4261,4441,4621,4801,5431,5521,5701,5791, 5881,6151,6421,6691,6781,6871,6961,7321,7411,7591, 7681,7951,8221]