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A256465
Number of points in a circle of squared radius n, points on the circle counted half.
0
3, 7, 9, 11, 17, 21, 21, 23, 27, 33, 37, 37, 41, 45, 45, 47, 53, 59, 61, 65, 69, 69, 69, 69, 75, 85, 89, 89, 93, 97, 97, 99, 101, 105, 109, 111, 117, 121, 121, 125, 133, 137, 137, 137, 141, 145, 145, 145, 147, 155, 161, 165, 173, 177, 177, 177, 177, 181, 185
OFFSET
1,1
FORMULA
a(n) = A057655(n) - A004018(n)/2.
CROSSREFS
Sequence in context: A186890 A248667 A075607 * A275386 A275602 A173699
KEYWORD
nonn,easy
AUTHOR
R. J. Mathar, Mar 30 2015
STATUS
approved