id:A036318 - OEIS Search Results

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Numbers n such that digits of prime factors of n are either 4 or 7.

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49, 329, 343, 2209, 2303, 2401, 15463, 16121, 16807, 31129, 52339, 103823, 108241, 112847, 117649, 209009, 217903, 313439, 334439, 351419, 366373, 523229, 542129, 542339, 544229, 726761, 757687, 789929, 823543, 1463063, 1525321, 2104519 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Cf. A036302-A036325.` `Sequence in context: A089552 A017354 A017474 this_sequence A020323 A036322 A036324` `Adjacent sequences: A036315 A036316 A036317 this_sequence A036319 A036320 A036321`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Dec 15 1998.`

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Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.

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