A000323 - cp's OEIS frontend

A000323 Let A(n) = #{(i,j): i^2 + j^2 <= n}, V(n) = Pi*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives A(A000099(n)).

n	a(n)
1	5
2	9
3	21
4	37
5	69
6	69
7	89
8	137
9	177
10	421
11	481
12	657
13	749
14	885
15	1085
16	1305
17	1353
18	1489
19	1861
20	2617
21	2693
22	3125
23	5249
24	5761
25	7129
26	8109
27	9465
28	9465
29	10717
30	12401
31	12401
32	16237
33	16237
34	24833
35	30725
36	35237
37	46701
38	47441
39	47441
40	61493
41	67797
42	67805
43	67805

[5, 9, 21, 37, 69, 69, 89, 137, 177, 421, 481, 657, 749, 885, 1085, 1305, 1353, 1489, 1861, 2617, 2693, 3125, 5249, 5761, 7129, 8109, 9465, 9465, 10717, 12401, 12401, 16237, 16237, 24833, 30725, 35237, 46701, 47441, 47441, 61493, 67797, 67805, 67805]

cp's OEIS Frontend

A000323 Let A(n) = #{(i,j): i^2 + j^2 <= n}, V(n) = Pi*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives A(A000099(n)).

Table of values

List of values