id:A108849 - OEIS Search Results

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Semiprimes whose digit reversal is a nontrivial power.

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4, 9, 46, 94, 121, 169, 215, 526, 961, 982, 1042, 1273, 1405, 1843, 2918, 3194, 4069, 4633, 5213, 5221, 6313, 6511, 6937, 8402, 9235, 9481, 9586, 9886, 10201, 10609, 12538, 12769, 14023, 16171, 16327, 16582, 16723, 18085, 18463, 18811, 27845 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Some nonsquare brilliant numbers in the sequence: 70597 = 227311 (79507 = 43^3), 76121 = 163467 (12167 = 23^3), 211591 = 457463 (195112 = 58^3), 291149 = 359811 (941192 = 98^3) ...`
	EXAMPLE	`215 is a term because 215 = 5*43 and 512 = 2^9.`
	CROSSREFS	`Cf. A069798.` `Sequence in context: A048054 A024053 A048892 this_sequence A025558 A103933 A013495` `Adjacent sequences: A108846 A108847 A108848 this_sequence A108850 A108851 A108852`
	KEYWORD	`base,nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jul 11 2005`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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