A115684 Both n and the reverse of n are the product of 2 palindromes greater than 1.

4, 6, 8, 9, 12, 18, 21, 22, 24, 27, 33, 36, 40, 42, 44, 45, 54, 55, 63, 66, 72, 77, 81, 88, 99, 121, 132, 198, 202, 220, 222, 231, 242, 262, 264, 282, 297, 303, 330, 333, 363, 393, 396, 404, 424, 440, 444, 462, 464, 484, 495, 505, 555, 594, 606, 616, 626, 636

Offset

1,1

Links

Table of n, a(n) for n=1..58.

Example

264=6*11 and 462=7*66

Crossrefs

Cf. A002113, A115683.

Sequence in context: A350706 A036310 A046760 * A373879 A020201 A292079

Adjacent sequences: A115681 A115682 A115683 * A115685 A115686 A115687

Keyword

nonn,base

Author

Giovanni Resta, Jan 31 2006

Status

approved