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A089002 Number of non-congruent solutions to x^2 + 2y^2 == -1 mod n. +0
1
1, 2, 2, 4, 6, 4, 8, 0, 6, 12, 10, 8, 14, 16, 12, 0, 16, 12, 18, 24 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Cf. A088965, A086932.

Sequence in context: A166362 A050469 A085730 this_sequence A097089 A096466 A088965

Adjacent sequences: A088999 A089000 A089001 this_sequence A089003 A089004 A089005

KEYWORD

mult,nonn

AUTHOR

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

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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