id:A067937 - OEIS Search Results

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Let rep(n) be the n-th repunit number, sequence gives values of n such that rep(n)==rep(4) (mod n).

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1, 2, 4, 5, 8, 10, 16, 20, 22, 25, 28, 37, 40, 44, 50, 52, 68, 70, 76, 80, 88, 92, 100, 110, 112, 116, 124, 125, 130, 148, 154, 164, 172, 176, 188, 200, 208, 212, 220, 236, 244, 250, 268, 280, 284, 286, 292, 316, 332, 340, 356, 364, 370, 388, 400, 404, 412, 418 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A002275.` `Sequence in context: A089653 A114652 A067943 this_sequence A003592 A159765 A018653` `Adjacent sequences: A067934 A067935 A067936 this_sequence A067938 A067939 A067940`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 05 2002`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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