login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A270175 Cinehps numbers: sphenic numbers whose reversal is a different sphenic number. 2
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 (list; graph; refs; listen; history; text; internal format)
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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 21 11:51 EDT 2021. Contains 348150 sequences. (Running on oeis4.)