id:A086982 - OEIS Search Results

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Numbers n such that 10^n+1 is not square-free.

+0
4

11, 21, 33, 39, 55, 63, 77, 99, 105, 117, 121, 136, 143, 147, 165, 171, 187, 189, 195, 202, 209, 231, 243, 253, 273, 275, 292, 297, 315, 319, 341, 351, 357, 363, 385, 399, 406, 407, 408, 429, 441, 451, 473, 483, 495, 507, 513, 517, 525, 539, 548, 561, 567 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`This sequence is the union of the collection of sequences formed from the nonzero terms of A086981 * A005408, the odd numbers. First occurrence of consecutive integers in sequence is 406,407,408.`
	CROSSREFS	`Cf. A013929, A086981, A046096.` `Adjacent sequences: A086979 A086980 A086981 this_sequence A086983 A086984 A086985` `Sequence in context: A081927 A139113 A109335 this_sequence A064832 A129638 A127624`
	KEYWORD	`nonn`
	AUTHOR	`Ray Chandler (rayjchandler(AT)sbcglobal.net), Jul 27 2003`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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