A000549 - cp's OEIS frontend

A000549 Numbers that are the sum of 2 squares but not sum of 3 nonzero squares.

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	10
7	13
8	16
9	20
10	25
11	32
12	37
13	40
14	52
15	58
16	64
17	80
18	85
19	100
20	128
21	130
22	148
23	160
24	208
25	232
26	256
27	320
28	340
29	400
30	512
31	520
32	592
33	640
34	832
35	928
36	1024
37	1280
38	1360
39	1600
40	2048
41	2080
42	2368
43	2560
44	3328
45	3712
46	4096
47	5120
48	5440
49	6400
50	8192
51	8320
52	9472
53	10240

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 32, 37, 40, 52, 58, 64, 80, 85, 100, 128, 130, 148, 160, 208, 232, 256, 320, 340, 400, 512, 520, 592, 640, 832, 928, 1024, 1280, 1360, 1600, 2048, 2080, 2368, 2560, 3328, 3712, 4096, 5120, 5440, 6400, 8192, 8320, 9472, 10240]

cp's OEIS Frontend

A000549 Numbers that are the sum of 2 squares but not sum of 3 nonzero squares.

Table of values

List of values