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A087561 Number of non-congruent solutions to x^2 + 2y^2 == 0 mod n. +0
3
1, 2, 5, 4, 1, 10, 1, 8, 21, 2, 21, 20, 1, 2, 5, 16, 33, 42, 37, 4, 5, 42, 1, 40, 25, 2, 81, 4, 1, 10, 1, 32, 105, 66, 1, 84, 1, 74, 5, 8, 81, 10, 85, 84, 21, 2, 1, 80, 49, 50, 165, 4, 1, 162, 21, 8, 185, 2, 117, 20, 1, 2, 21, 64, 1, 210, 133, 132, 5, 2, 1, 168, 145, 2, 125, 148, 21 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Cf. A086933.

Sequence in context: A106664 A116516 A011417 this_sequence A009738 A055127 A049060

Adjacent sequences: A087558 A087559 A087560 this_sequence A087562 A087563 A087564

KEYWORD

mult,nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Oct 24 2003

EXTENSIONS

More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Jun 07 2005

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.


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