A031427 - OEIS

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A031427

Least term in period of continued fraction for sqrt(n) is 3.

11, 40, 87, 128, 152, 232, 235, 266, 300, 335, 336, 373, 455, 498, 544, 592, 747, 848, 860, 914, 920, 1110, 1111, 1248, 1320, 1392, 1393, 1547, 1700, 1707, 1708, 1790, 1792, 1876, 1953, 2055, 2240, 2335, 2336, 2632, 2635, 2829, 2844, 2952 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 1..1000`
	MATHEMATICA	`Select[Range[3000], !IntegerQ[Sqrt[#]] && Min[ContinuedFraction[Sqrt[#]][[2]]] == 3&] (* Vincenzo Librandi, Feb 06 2012 *)`
	CROSSREFS	`Sequence in context: A183940 A077568 A122014 * A147296 A059142 A064798` `Adjacent sequences: A031424 A031425 A031426 * A031428 A031429 A031430`
	KEYWORD	`nonn,changed`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified February 17 13:14 EST 2012. Contains 206031 sequences.