A374805 - cp's OEIS frontend

A374805 a(n) is the smallest positive integer whose square can be represented as the sum of 3 distinct nonzero squares in exactly n ways, or -1 if no such number exists.

n	a(n)
0	1
1	7
2	15
3	23
4	31
5	21
6	33
7	39
8	49
9	45
10	79
11	57
12	95
13	103
14	75
15	69
16	127
17	87
18	63
19	151
20	93
21	167
22	111
23	123
24	99
25	187
26	117
27	105
28	161
29	241
30	141
31	135
32	153
33	247
34	271
35	283
36	177
37	183
38	165
39	275
40	147
41	171
42	323
43	219

[1, 7, 15, 23, 31, 21, 33, 39, 49, 45, 79, 57, 95, 103, 75, 69, 127, 87, 63, 151, 93, 167, 111, 123, 99, 187, 117, 105, 161, 241, 141, 135, 153, 247, 271, 283, 177, 183, 165, 275, 147, 171, 323, 219]

cp's OEIS Frontend

A374805 a(n) is the smallest positive integer whose square can be represented as the sum of 3 distinct nonzero squares in exactly n ways, or -1 if no such number exists.

Table of values

List of values

n	a(n)
0	1
1	7
2	15
3	23
4	31
5	21
6	33
7	39
8	49
9	45
10	79
11	57
12	95
13	103
14	75
15	69
16	127
17	87
18	63
19	151
20	93
21	167
22	111
23	123
24	99
25	187
26	117
27	105
28	161
29	241
30	141
31	135
32	153
33	247
34	271
35	283
36	177
37	183
38	165
39	275
40	147
41	171
42	323
43	219

n	a(n)
0	1
1	7
2	15
3	23
4	31
5	21
6	33
7	39
8	49
9	45
10	79
11	57
12	95
13	103
14	75
15	69
16	127
17	87
18	63
19	151
20	93
21	167
22	111
23	123
24	99
25	187
26	117
27	105
28	161
29	241
30	141
31	135
32	153
33	247
34	271
35	283
36	177
37	183
38	165
39	275
40	147
41	171
42	323
43	219

n	a(n)
0	1
1	7
2	15
3	23
4	31
5	21
6	33
7	39
8	49
9	45
10	79
11	57
12	95
13	103
14	75
15	69
16	127
17	87
18	63
19	151
20	93
21	167
22	111
23	123
24	99
25	187
26	117
27	105
28	161
29	241
30	141
31	135
32	153
33	247
34	271
35	283
36	177
37	183
38	165
39	275
40	147
41	171
42	323
43	219