id:A115706 - OEIS Search Results

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Primes whose digit reversal is a pentagonal number (A000326).

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5, 29, 53, 541, 673, 2239, 5273, 6257, 7753, 10567, 10861, 10883, 15137, 27793, 28447, 28723, 29201, 52639, 54001, 56041, 59863, 62143, 67189, 67349, 74587, 76771, 103591, 103811, 104971, 108643, 157637, 212161, 217223, 229343, 241391 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`541 is prime and 145 is the 10th pentagonal number.`
	CROSSREFS	`Cf. A000326, A115707.` `Adjacent sequences: A115703 A115704 A115705 this_sequence A115707 A115708 A115709` `Sequence in context: A081116 A141374 A107003 this_sequence A031394 A103094 A108928`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 31 2006`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

AT&T Labs Research