id:A165916 - OEIS Search Results

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Irregular triangle read by rows: Square-free quadratic non-residues.

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3

2, 2, 3, 2, 3, 2, 5, 3, 5, 6, 2, 3, 5, 6, 7, 2, 3, 5, 6, 2, 3, 7, 2, 6, 7, 10, 2, 3, 5, 6, 7, 10, 11, 2, 5, 6, 7, 11, 3, 5, 6, 10, 13, 2, 3, 5, 7, 11, 13, 14, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 3, 5, 6, 7, 10, 11, 14, 2, 3, 5, 6, 11, 14, 15, 17, 2, 3, 10, 13, 14, 15 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`The irregular triangle of numbers is:` `..n....Square-free quadratic non-residues` `..1....` `..2....` `..3....2` `..4....2..3` `..5....2..3` `..6....2..5` `..7....3..5..6` `..8....2..3..5..6..7` `..9....2..3..5..6` `.10....2..3..7` `.11....2..6..7.10` `.12....2..3..5..6..7.10.11` `.13....2..5..6..7.11` `.14....3..5..6.10.13` `.15....2..3..5..7.11.13.14` `.16....2..3..5..6..7.10.11.13.14.15` `.17....3..5..6..7.10.11.14` `.18....2..3..5..6.11.14.15.17` `.19....2..3.10.13.14.15`
	CROSSREFS	`Cf: A096013` `Sequence in context: A060324 A046216 A105560 this_sequence A096013 A072380 A144910` `Adjacent sequences: A165913 A165914 A165915 this_sequence A165917 A165918 A165919`
	KEYWORD	`nonn`
	AUTHOR	`Christopher Hunt Gribble (chris.eveswell(AT)virgin.net), Sep 30 2009`
	EXTENSIONS	`Minor edit by Christopher Hunt Gribble (chris.eveswell(AT)virgin.net), Oct 05 2009`

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.

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