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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
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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:
A186003
A377835
A368221
*
A347976
A387024
A253722
Adjacent sequences:
A077629
A077630
A077631
*
A077633
A077634
A077635
KEYWORD
nonn
AUTHOR
Labos Elemer
, Nov 13 2002
STATUS
approved
