A061245 Prime numbers with odd digits in descending order.
3, 5, 7, 11, 31, 53, 71, 73, 97, 311, 331, 733, 751, 773, 911, 953, 971, 977, 991, 997, 3331, 5333, 5531, 7331, 7333, 7753, 9311, 9511, 9533, 9551, 9733, 9931, 9973, 33311, 33331, 55331, 55333, 55511, 73331, 75511, 75533, 75553, 77551, 77711
Offset: 1
Extensions
More terms from Patrick De Geest, Jun 04 2001