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A115697 Powerful(1) numbers (A001694) whose digit reversal is the product of 2 palindromes greater than 1. 1
4, 8, 9, 27, 36, 72, 81, 121, 243, 324, 400, 484, 648, 800, 900, 1089, 1331, 1728, 1800, 2187, 2197, 2700, 3267, 3456, 3600, 4000, 4356, 4500, 5184, 5292, 5324, 5400, 5625, 6561, 7200, 7803, 8000, 8100, 8712, 9000, 9261, 9801, 10201, 11979 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..44.

Index entries for sequences related to powerful numbers

EXAMPLE

3267=3^3*11^2 is powerful and 7623=77*99.

CROSSREFS

Cf. A001694, A115683.

Sequence in context: A182046 A171468 A114377 * A075783 A098121 A115656

Adjacent sequences:  A115694 A115695 A115696 * A115698 A115699 A115700

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 31 2006

STATUS

approved

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Last modified August 19 18:33 EDT 2019. Contains 326133 sequences. (Running on oeis4.)