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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
OFFSET
1,1
MATHEMATICA
Table[Apply[LCM, Last[ContinuedFraction[Sqrt[1+3^u]]]], {u, 1, 25}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, Nov 13 2002
STATUS
approved