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A089003 Number of non-congruent solutions to x^2 - 2y^2 == 1 mod n. 0
1, 2, 4, 4, 6, 8, 6, 16, 12, 12, 12, 16, 14, 12, 24, 32, 16, 24, 20, 24, 24, 24, 22, 64, 30, 28, 36, 24, 30, 48, 30, 64, 48, 32, 36, 48, 38, 40, 56, 96, 40, 48, 44, 48, 72, 44, 46, 128, 42, 60, 64, 56, 54, 72, 72, 96, 80, 60, 60, 96, 62, 60, 72, 128, 84, 96, 68, 64, 88, 72 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Cf. A088964, A062570.

Sequence in context: A026413 A038669 A135692 * A132118 A007843 A053196

Adjacent sequences:  A089000 A089001 A089002 * A089004 A089005 A089006

KEYWORD

mult,nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Nov 02 2003

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Last modified February 17 14:19 EST 2012. Contains 206038 sequences.