id:A046450 - OEIS Search Results

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Concatenation of prime factors of palindromic composite is a palindrome.

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1, 4, 8, 9, 121, 343, 1331, 10001, 10201, 14641, 36763, 1030301, 1037301, 1226221, 9396939, 104060401, 12467976421, 14432823441 (list; graph; listen)

	OFFSET	`0,2`
	EXAMPLE	`E.g. 14432823441 = 3 * 3 * 281 * 313 * 18233 -> 3328131318233 is palindromic.`
	CROSSREFS	`Cf. A046447, A046448, A046449.` `Sequence in context: A110811 A128827 A075786 this_sequence A077271 A072037 A084093` `Adjacent sequences: A046447 A046448 A046449 this_sequence A046451 A046452 A046453`
	KEYWORD	`nonn,more`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Jul 15 1998.`

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

AT&T Labs Research