id:A115689 - OEIS Search Results

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Powerful(1) numbers (A001694) whose digit reversal is a square.

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1, 4, 9, 100, 121, 144, 169, 400, 441, 484, 675, 676, 900, 961, 1000, 1089, 1800, 4000, 9000, 9801, 10000, 10201, 10404, 10609, 12100, 12321, 12544, 12769, 14400, 14641, 14884, 16900, 18000, 18252, 40000, 40401, 40804, 44100, 44521, 44944 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`18252=2^23^313^2 is powerful and 25281=159^2.`
	CROSSREFS	`Cf. A001694, A115690.` `Sequence in context: A077530 A115551 A115690 this_sequence A061457 A069707 A129967` `Adjacent sequences: A115686 A115687 A115688 this_sequence A115690 A115691 A115692`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 31 2006`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research