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A106602 Number of primitive positive solutions to 8n+2=x^2+y^2. +0
2
1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 2, 0, 1, 0, 0, 2, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 2, 1, 0, 1, 0, 0, 1, 1, 0, 1, 2, 0, 1, 1, 0, 2, 0, 0, 0, 2, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 2, 1, 0, 1, 1, 0, 1, 1, 0 (list; graph; listen)
OFFSET

0,17

EXAMPLE

a(16)=2 because we have 130=11^2+3^2=9^2+7^2. a(2)=0 because although 18=3^2+3^2, these components are not mutually prime.

CROSSREFS

Cf. A106594.

Adjacent sequences: A106599 A106600 A106601 this_sequence A106603 A106604 A106605

Sequence in context: A080101 A025895 A104451 this_sequence A106594 A143251 A115235

KEYWORD

easy,nonn

AUTHOR

Colin Mallows (colinm(AT)avaya.com), May 10 2005

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.


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