id:A130466 - OEIS Search Results

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Triangle where the n-th row consists of the n smallest positive integers which are coprime to the sum of divisors of n.

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1, 1, 2, 1, 3, 5, 1, 2, 3, 4, 1, 5, 7, 11, 13, 1, 5, 7, 11, 13, 17, 1, 3, 5, 7, 9, 11, 13, 1, 2, 4, 7, 8, 11, 13, 14, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 5, 7, 11, 13, 17, 19, 23, 25, 29, 1, 5, 7, 11, 13, 17, 19, 23, 25, 29, 31, 1, 3, 5, 9, 11, 13, 15, 17, 19, 23, 25, 27, 1, 3, 5, 9, 11, 13, 15, 17, 19 (list; table; graph; listen)

	OFFSET	`1,3`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	CROSSREFS	`Cf. A122212, A130465.` `Sequence in context: A141487 A099866 A085189 this_sequence A129322 A089984 A062105` `Adjacent sequences: A130463 A130464 A130465 this_sequence A130467 A130468 A130469`
	KEYWORD	`nonn,tabl,new`
	AUTHOR	`Leroy Quet May 27 2007`
	EXTENSIONS	`More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Mar 02 2010`

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Last modified March 19 01:26 EDT 2010. Contains 173632 sequences.

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