A032710 n prefixed by '1' and followed by '3' is a prime.

0, 1, 6, 7, 9, 10, 12, 15, 16, 19, 21, 22, 28, 30, 37, 42, 43, 45, 48, 49, 52, 54, 55, 58, 61, 66, 69, 72, 73, 75, 78, 82, 87, 91, 93, 97, 99, 100, 108, 109, 111, 117, 121, 124, 127, 135, 138, 139, 142, 144, 148, 150, 159, 163, 174, 178, 181, 183, 186, 190, 192