A270175 Cinehps numbers: sphenic numbers whose reversal is a different sphenic number.

165, 246, 285, 286, 366, 418, 435, 438, 498, 534, 561, 582, 609, 642, 663, 682, 759, 814, 834, 894, 906, 957, 1002, 1023, 1034, 1066, 1095, 1113, 1131, 1185, 1209, 1239, 1245, 1265, 1311, 1342, 1353, 1374, 1398, 1419, 1443, 1446, 1479, 1515, 1526, 1542, 1545

Offset: 1

Author

Chai Wah Wu, Apr 14 2016

Keywords

• nonn
• base

Comments

A number n that is a multiple of 10 is a member if and only if n/10 is a prime whose reversal is a sphenic number (A271799).

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..10000
• The Prime Pages, Prime Curios!: 165

Crossrefs

Cf. A007304, A271799.