Sequence S000577 without duplicates.
2, 5, 13, 37, 59, 89, 113, 173, 431, 1259, 1277, 2657, 13669, 19373, 27733, 106619, 113039, 115751, 524857, 560081, 783619, 1219717, 1652731, 2704901, 8756939, 19800101, 21401987, 40268381, 40268387, 40268441, 167540111, 286352189, 311773001
1
T. D. Noe, Plot of 33 terms
Cf. S000577.
nonn,hard
T. D. Noe, Apr 15 2015