id:A115703 - OEIS Search Results

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Pentagonal numbers (A000326) whose digit reversal is the product of 2 palindromes greater than 1.

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12, 22, 51, 210, 330, 425, 1162, 2882, 3876, 4510, 6902, 8400, 9801, 14652, 15251, 22632, 27270, 29330, 32340, 52360, 54055, 55777, 58707, 66676, 68587, 104412, 197472, 217551, 279720, 298151, 319935, 341055, 448540, 468442, 481950 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`14652 is the 99th pentagonal number and 25641=77*333.`
	CROSSREFS	`Cf. A000326, A115683.` `Sequence in context: A115745 A129639 A115709 this_sequence A014633 A066458 A101104` `Adjacent sequences: A115700 A115701 A115702 this_sequence A115704 A115705 A115706`
	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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