id:A046385 - OEIS Search Results

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Smallest palindrome with exactly n palindromic prime factors (counted with multiplicity).

+0
2

1, 2, 4, 8, 88, 252, 2772, 82728, 2112, 4224, 8448, 236989632, 48384, 2977792 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Initial terms of sequences A046376-A046384.` `Note that 48384 (k=12) is a 'Droll' number: see A019507.`
	CROSSREFS	`Sequence in context: A089337 A088114 A076886 this_sequence A068664 A018605 A058262` `Adjacent sequences: A046382 A046383 A046384 this_sequence A046386 A046387 A046388`
	KEYWORD	`nonn,hard`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1998.`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.