

A049735


Array T read by diagonals; T(i,j)=number of lattice points (x,y) in circle with radius (0,0)to(i,j).


10



1, 5, 5, 13, 9, 13, 29, 21, 21, 29, 49, 37, 25, 37, 49, 81, 57, 45, 45, 57, 81, 113, 89, 69, 61, 69, 89, 113, 149, 121, 97, 81, 81, 97, 121, 149, 197, 161, 129, 109, 101, 109, 129, 161, 197, 253, 213, 177, 145, 137, 137, 145, 177, 213, 253
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OFFSET

0,2


LINKS

Table of n, a(n) for n=0..54.


EXAMPLE

T(n,0)=A000328(n).


CROSSREFS

Diagonals (each starting on row 1): {1}, {5, 5}, {13, 9, 13}, ...
Sequence in context: A206553 A122213 A224067 * A055526 A146984 A055524
Adjacent sequences: A049732 A049733 A049734 * A049736 A049737 A049738


KEYWORD

nonn,tabl


AUTHOR

Clark Kimberling


EXTENSIONS

Specifically, x^2 + y^2 <= i^2 + j^2.


STATUS

approved



