id:A031420 - OEIS Search Results

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Numbers n such that continued fraction for sqrt(n) has odd period and central terms 7.

+0
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50, 349, 778, 1105, 1237, 1306, 1565, 1721, 2473, 3361, 3706, 3889, 4133, 4985, 5261, 5545, 6217, 6841, 6929, 7165, 7253, 7418, 7754, 8021, 8273, 8369, 8629, 9089, 9274, 9461, 10034, 10229, 10333, 10729, 11245, 11657, 12077, 12842 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A091414 A046656 A124809 this_sequence A111341 A019561 A164757` `Adjacent sequences: A031417 A031418 A031419 this_sequence A031421 A031422 A031423`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research