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A078146 Length of period of continued fraction for square root of -1+n!. 1
0, 0, 1, 4, 4, 28, 4, 12, 64, 600, 380, 10908, 23720, 168072 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

EXAMPLE

Period for Sqrt[4!-1]=Sqrt[23]={1,1,1,4}, a(4)=4

MATHEMATICA

Table[Length[Last[ContinuedFraction[Sqrt[ -1+n! ]]]], {n, 1, 14}]

CROSSREFS

Cf. A078145, A064025.

Sequence in context: A132650 A112953 A110139 * A066836 A173049 A065237

Adjacent sequences:  A078143 A078144 A078145 * A078147 A078148 A078149

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Nov 25 2002

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Last modified February 15 18:22 EST 2012. Contains 205835 sequences.