A341423 - cp's OEIS frontend

A341423 Number of positive solutions to (x_1)^2 + (x_2)^2 + (x_3)^2 + (x_4)^2 <= n^2.

n	a(n)
2	1
3	5
4	32
5	94
6	219
7	437
8	804
9	1362
10	2177
11	3271
12	4768
13	6708
14	9227
15	12381
16	16254
17	20954
18	26707
19	33461
20	41480
21	50884
22	61703
23	74183
24	88606
25	104862
26	123481
27	144241
28	167604
29	193648
30	222799
31	254731
32	290244
33	329512
34	372545
35	419661
36	470822
37	526646
38	587481
39	653505

[1, 5, 32, 94, 219, 437, 804, 1362, 2177, 3271, 4768, 6708, 9227, 12381, 16254, 20954, 26707, 33461, 41480, 50884, 61703, 74183, 88606, 104862, 123481, 144241, 167604, 193648, 222799, 254731, 290244, 329512, 372545, 419661, 470822, 526646, 587481, 653505]

cp's OEIS Frontend

A341423 Number of positive solutions to (x_1)^2 + (x_2)^2 + (x_3)^2 + (x_4)^2 <= n^2.

Table of values

List of values