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A077632 LCM of terms in periodic part of continued fraction expansion of square root of 1+2^n. 0
2, 4, 3, 8, 10, 16, 66, 32, 220, 64, 235620, 128, 360360, 256, 2508660, 512, 16290726273360, 1024, 23508390120198798054240, 2048, 465977246353354335600, 4096, 3026207803243202829468977760, 8192 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..24.

MATHEMATICA

Table[Apply[LCM, Last[ContinuedFraction[Sqrt[1+2^u]]]], {u, 1, 25}]

CROSSREFS

Cf. A077624-A077635.

Sequence in context: A026166 A186003 A077624 * A253722 A323506 A302747

Adjacent sequences:  A077629 A077630 A077631 * A077633 A077634 A077635

KEYWORD

nonn

AUTHOR

Labos Elemer, Nov 13 2002

STATUS

approved

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Last modified April 19 13:00 EDT 2021. Contains 343114 sequences. (Running on oeis4.)