A309778 - cp's OEIS frontend

A309778 a(n) is the greatest integer such that, for every positive integer k <= a(n), n^2 can be written as the sum of k positive square integers.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	1
9	1
10	2
11	1
12	1
13	155
14	1
15	211
16	1
17	275
18	1
19	1
20	2
21	1
22	1
23	1
24	1
25	611
26	662
27	1
28	1
29	827
30	886
31	1
32	1
33	1
34	1142
35	1211
36	1
37	1355
38	1
39	1507
40	2
41	1667
42	1
43	1
44	1
45	2011
46	1
47	1
48	1
49	1
50	2486
51	2587
52	2690
53	2795
54	1
55	3011
56	1
57	1
58	3350
59	1
60	3586
61	3707
62	1
63	1
64	1

[1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 155, 1, 211, 1, 275, 1, 1, 2, 1, 1, 1, 1, 611, 662, 1, 1, 827, 886, 1, 1, 1, 1142, 1211, 1, 1355, 1, 1507, 2, 1667, 1, 1, 1, 2011, 1, 1, 1, 1, 2486, 2587, 2690, 2795, 1, 3011, 1, 1, 3350, 1, 3586, 3707, 1, 1, 1]

cp's OEIS Frontend

A309778 a(n) is the greatest integer such that, for every positive integer k <= a(n), n^2 can be written as the sum of k positive square integers.

Table of values

List of values