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A064848 Period of continued fraction for sqrt(2)*n. 2
1, 2, 2, 4, 1, 2, 4, 4, 10, 2, 10, 2, 5, 4, 8, 12, 2, 6, 14, 8, 8, 6, 16, 4, 13, 10, 26, 8, 1, 8, 24, 24, 6, 2, 2, 6, 15, 18, 16, 20, 4, 8, 30, 6, 10, 16, 28, 8, 36, 22, 2, 20, 19, 30, 10, 12, 14, 2, 14, 8, 25, 20, 4, 48, 13, 6, 54, 2, 32, 2, 52, 16, 30, 26, 40, 10, 6, 16, 20, 36, 78, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n)=1 for n in A001653. - Robert Israel, Jul 10 2018

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

MAPLE

f:= n -> nops(numtheory:-cfrac(sqrt(2)*n, 'periodic', 'quotients')[2]):

map(f, [$1..1000]); # Robert Israel, Jul 10 2018

CROSSREFS

Cf. A001653.

Sequence in context: A317826 A317836 A214740 * A333335 A212791 A175001

Adjacent sequences:  A064845 A064846 A064847 * A064849 A064850 A064851

KEYWORD

nonn

AUTHOR

R. K. Guy, Oct 26, 2001

STATUS

approved

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Last modified July 25 23:39 EDT 2021. Contains 346294 sequences. (Running on oeis4.)