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A115690 Squares whose digit reversal is a powerful(1) number (A001694). 1
1, 4, 9, 100, 121, 144, 169, 400, 441, 484, 576, 676, 900, 961, 1089, 9801, 10000, 10201, 10404, 10609, 12100, 12321, 12544, 12769, 14400, 14641, 14884, 16900, 25281, 27225, 40000, 40401, 40804, 44100, 44521, 44944, 48400, 48841, 57600 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..39.

EXAMPLE

25281=159^2 and 18252=2^2*3^3*13^2 is powerful.

CROSSREFS

Cf. A001694, A115689.

Sequence in context: A220972 A247009 A245241 * A115689 A061457 A069707

Adjacent sequences:  A115687 A115688 A115689 * A115691 A115692 A115693

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 31 2006

STATUS

approved

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Last modified January 26 08:18 EST 2020. Contains 331278 sequences. (Running on oeis4.)