id:A101805 - OEIS Search Results

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Number of Ruth-Aaron numbers (with multiplicity) less than 10^n.

+0
1

2, 4, 7, 20, 57, 149, 523, 1835 (list; graph; listen)

	OFFSET	`0,1`
	LINKS	`Eric Weisstein's World of Mathematics, Ruth-Aaron Pair`
	CROSSREFS	`Cf. A039752.` `Sequence in context: A047871 A103032 A101569 this_sequence A102984 A103017 A091833` `Adjacent sequences: A101802 A101803 A101804 this_sequence A101806 A101807 A101808`
	KEYWORD	`nonn,more`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Dec 16, 2004`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.