id:A115688 - OEIS Search Results

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Semiprimes (A001358) whose digit reversal is a powerful(1) number (A001694).

+0
2

4, 9, 10, 46, 94, 121, 169, 215, 526, 869, 961, 982, 1042, 1273, 1405, 1843, 2918, 3194, 4069, 4633, 5213, 5221, 5758, 6313, 6511, 6937, 8045, 8402, 8651, 8882, 9235, 9481, 9586, 9886, 10201, 10609, 12538, 12769, 14023, 16171, 16327, 16582 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`869=1179 is semiprime and 968=2^311^2 is powerful.`
	CROSSREFS	`Cf. A001358, A001694, A115687.` `Sequence in context: A121215 A102985 A112401 this_sequence A115710 A082749 A115675` `Adjacent sequences: A115685 A115686 A115687 this_sequence A115689 A115690 A115691`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 31 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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