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A007882 Number of lattice points inside circle of radius n is 4(a(n)+n)-3. +0
1
0, 1, 4, 8, 13, 22, 30, 41, 54, 67, 83, 98, 117, 139, 160, 183, 206, 234, 263, 292, 322, 357, 390, 424, 461, 502, 545, 585, 626, 673, 719, 770, 819, 870 (list; graph; listen)
OFFSET

1,3
REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, F1.

CROSSREFS

Sequence in context: A038793 A036709 A052115 this_sequence A009852 A080003 A033016

Adjacent sequences: A007879 A007880 A007881 this_sequence A007883 A007884 A007885

KEYWORD

nonn

AUTHOR

Randall Rathbun

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Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.

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