id:A046452 - OEIS Search Results

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Concatenation of the 3 prime factors of composite a(n) is a palindrome.

+0
4

8, 27, 125, 343, 429, 507, 795, 1309, 1331, 1533, 1547, 1587, 2023, 2097, 3633, 3897, 5289, 5295, 5547, 6597, 7833, 8029, 8427, 9583, 9795, 12207, 12795, 13489, 13573, 14133, 14147, 14295, 15463, 15549, 15987, 16233, 17295, 20667, 22139, 28273 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`E.g. 14133 = 3 * 7 * 673 -> 37673 is palindromic.`
	CROSSREFS	`Cf. A046447.` `Sequence in context: A030162 A153147 A062838 this_sequence A030078 A051751 A133042` `Adjacent sequences: A046449 A046450 A046451 this_sequence A046453 A046454 A046455`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Jul 15 1998.`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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