A047801 - cp's OEIS frontend

A047801 Number of different values of i^2+j^2+k^2+l^2 for i,j,k,l in [ 0,n ].

n	a(n)
0	1
1	5
2	14
3	29
4	50
5	74
6	111
7	149
8	197
9	247
10	308
11	370
12	451
13	526
14	613
15	706
16	815
17	914
18	1037
19	1146
20	1284
21	1416
22	1565
23	1698
24	1876
25	2030
26	2209
27	2380
28	2578
29	2757
30	2972
31	3168
32	3401
33	3612
34	3850
35	4071
36	4339
37	4575
38	4843
39	5089
40	5388

[1, 5, 14, 29, 50, 74, 111, 149, 197, 247, 308, 370, 451, 526, 613, 706, 815, 914, 1037, 1146, 1284, 1416, 1565, 1698, 1876, 2030, 2209, 2380, 2578, 2757, 2972, 3168, 3401, 3612, 3850, 4071, 4339, 4575, 4843, 5089, 5388]

cp's OEIS Frontend

A047801 Number of different values of i^2+j^2+k^2+l^2 for i,j,k,l in [ 0,n ].

Table of values

List of values