id:A085647 - OEIS Search Results

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Semiprimes whose prime factors p*q have an equal number of decimal digits and p is not equal to q.

+0
2

6, 10, 14, 15, 21, 35, 143, 187, 209, 221, 247, 253, 299, 319, 323, 341, 377, 391, 403, 407, 437, 451, 473, 481, 493, 517, 527, 533, 551, 559, 583, 589, 611, 629, 649, 667, 671, 689, 697, 703, 713, 731, 737, 767, 779, 781, 793, 799, 803, 817, 851, 869, 871 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Cf. A001358, A078972.` `Sequence in context: A088709 A063078 A064452 this_sequence A072901 A162409 A075777` `Adjacent sequences: A085644 A085645 A085646 this_sequence A085648 A085649 A085650`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jason Earls (zevi_35711(AT)yahoo.com), Jul 11 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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