id:A050700 - OEIS Search Results

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Smallest of the pair n and n-reversed (<>n and no leading zeros) having the same number of prime factors.

+0
3

15, 26, 39, 49, 58, 115, 117, 122, 123, 126, 129, 143, 147, 155, 158, 159, 165, 169, 177, 178, 183, 185, 187, 203, 205, 225, 226, 244, 246, 265, 285, 286, 289, 294, 314, 315, 319, 326, 327, 329, 335, 338, 339, 355, 366, 369, 394, 398, 406, 415, 418, 425 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`a(n)=143 -> a(n)-reversed=341 gives pair (143,341) of which only the smallest value 143 is withheld.`
	CROSSREFS	`Cf. A050699, A050701.` `Sequence in context: A032609 A050699 A097393 this_sequence A139566 A097963 A063936` `Adjacent sequences: A050697 A050698 A050699 this_sequence A050701 A050702 A050703`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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