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A020640

Increasing periods of continued fraction for sqrt(n) (period of continued fraction for sqrt(A013645(n))).

+0
1

1, 2, 4, 5, 6, 8, 10, 12, 16, 18, 20, 22, 26, 34, 37, 40, 42, 44, 48, 52, 54, 60, 62, 64, 70, 76, 79, 88, 94, 96, 102, 104, 108, 114, 118, 122, 130, 136, 152, 156, 158, 170, 172, 174, 194, 196, 202, 207, 210, 217, 228, 234, 238, 239, 248, 262, 268, 280, 281, 290, 300, 322, 332 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A065502 A077255 A091413 this_sequence A068383 A069872 A093080` `Adjacent sequences: A020637 A020638 A020639 this_sequence A020641 A020642 A020643`
	KEYWORD	`nonn,nice`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research