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

1,1

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.

Sequence in context: A083255 A259283 A319502 * A319328 A301970 A176877

Adjacent sequences: A270172 A270173 A270174 * A270176 A270177 A270178

Keyword

nonn,base

Author

Chai Wah Wu, Apr 14 2016

Status

approved