id:A061097 - OEIS Search Results

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a(n) = concatenation of the phi(n) numbers relatively prime to n.

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1, 1, 12, 13, 1234, 15, 123456, 1357, 124578, 1379 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`M. L. Perez et al., eds., Smarandache Notions Journal`
	EXAMPLE	`a(6) =15, 1 and 5 are the two coprime numbers less than 6. a(7)= 123456. 7 is a prime. phi(7) =6 hence all the numbers less than 7 are concatenated.`
	CROSSREFS	`A000010.` `Adjacent sequences: A061094 A061095 A061096 this_sequence A061098 A061099 A061100` `Sequence in context: A066321 A099415 A042293 this_sequence A121288 A075477 A075482`
	KEYWORD	`nonn,base`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 19 2001`

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.