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A077634
LCM of terms in periodic part of continued fraction expansion of square root of 1+3^n.
0
2, 6, 30, 18, 90, 54, 106260, 162, 26040, 486, 341725784400, 1458, 6564164506066423389173040, 4374, 177815552218920, 13122, 2998833665484118393000638135815684490471025925316000, 39366
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..18.
MATHEMATICA
Table[Apply[LCM, Last[ContinuedFraction[Sqrt[1+3^u]]]], {u, 1, 25}]
CROSSREFS
Cf.
A077624
-
A077635
.
Sequence in context:
A127797
A338441
A385944
*
A095198
A126989
A361492
Adjacent sequences:
A077631
A077632
A077633
*
A077635
A077636
A077637
KEYWORD
nonn
AUTHOR
Labos Elemer
, Nov 13 2002
STATUS
approved
