A048150 - cp's OEIS frontend

A048150 a(n)=number of numbers h^2+k^2 that are <=2n^2; equivalently, a(n)=T(n,n), array T as in A048149.

n	a(n)
0	1
1	4
2	9
3	20
4	31
5	48
6	65
7	86
8	113
9	140
10	173
11	206
12	239
13	286
14	327
15	378
16	425
17	478
18	533
19	590
20	659
21	722
22	793
23	862
24	933
25	1020
26	1099
27	1184
28	1271
29	1360
30	1455
31	1550
32	1655
33	1758
34	1865
35	1976
36	2079
37	2202
38	2319
39	2448
40	2569
41	2694
42	2827
43	2960

[1, 4, 9, 20, 31, 48, 65, 86, 113, 140, 173, 206, 239, 286, 327, 378, 425, 478, 533, 590, 659, 722, 793, 862, 933, 1020, 1099, 1184, 1271, 1360, 1455, 1550, 1655, 1758, 1865, 1976, 2079, 2202, 2319, 2448, 2569, 2694, 2827, 2960]

cp's OEIS Frontend

A048150 a(n)=number of numbers h^2+k^2 that are <=2n^2; equivalently, a(n)=T(n,n), array T as in A048149.

Table of values

List of values