id:A056149 - OEIS Search Results

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a(0) = 1, a(m) = number of a(k), 0 <= k <= m-1, where GCD(m, a(k)) = 1.

+0
2

1, 1, 2, 3, 3, 5, 3, 7, 7, 6, 7, 11, 7, 13, 8, 10, 12, 17, 10, 19, 13, 12, 14, 23, 13, 22, 14, 21, 13, 29, 15, 31, 22, 22, 21, 23, 18, 37, 24, 24, 23, 41, 17, 43, 28, 30, 26, 47, 24, 40, 28, 35, 27, 53, 26, 44, 26, 41, 33, 59, 26, 61, 36, 37, 38, 50, 29, 67, 38, 49, 31, 71, 35 (list; graph; listen)

	OFFSET	`0,3`
	EXAMPLE	`a(6) = 3 because a(0), a(1) and a(5) are relatively prime to 6.`
	CROSSREFS	`Cf. A096216.` `Sequence in context: A065070 A070800 A138663 this_sequence A091238 A122954 A126571` `Adjacent sequences: A056146 A056147 A056148 this_sequence A056150 A056151 A056152`
	KEYWORD	`easy,nonn`
	AUTHOR	`Leroy Quet (qq-quet(AT)mindspring.com), Aug 04 2000`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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