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A105352 Number of points whose integer coordinates x and y are on circles with bigger and bigger radii. 1
1, 4, 4, 4, 8, 4, 4, 8, 8, 4, 8, 4, 8, 12, 8, 8, 4, 8, 4, 8, 8, 8, 8, 4, 12, 8, 8, 8, 8, 4, 16, 8, 4, 8, 8, 8, 4, 8, 16, 8, 8, 8, 4, 12 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

a(n)=A004018(A001481(n)). - Franz Vrabec (franz.vrabec(AT)aon.at), Jun 14 2005

LINKS

T. D. Noe, Table of n, a(n) for n=1..10000

CROSSREFS

Cf. A057961 (partial sums).

Sequence in context: A137751 A010658 A128939 * A132200 A110757 A167184

Adjacent sequences:  A105349 A105350 A105351 * A105353 A105354 A105355

KEYWORD

nice,nonn

AUTHOR

Sebastien Dumortier (sdumortier(AT)ac-limoges.fr), Apr 30 2005

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Last modified February 12 18:02 EST 2012. Contains 205432 sequences.