A227194 - cp's OEIS frontend

A227194 Natural numbers for which all sums Sum_{i=1..u} K(i/n) (with u ranging from 1 to n) are nonnegative, where K(i/n) is Kronecker symbol of i and n.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	9
8	10
9	11
10	12
11	14
12	15
13	16
14	23
15	24
16	25
17	26
18	27
19	30
20	31
21	34
22	35
23	36
24	38
25	39
26	42
27	44
28	47
29	48
30	49
31	54
32	55
33	56
34	58
35	59
36	62
37	63
38	64
39	66
40	71
41	74
42	75
43	76
44	79
45	81
46	82
47	83
48	86
49	87
50	94
51	95
52	96
53	100
54	103
55	106
56	108
57	110
58	111
59	114
60	119
61	120
62	121
63	130
64	131

[1, 2, 3, 4, 6, 7, 9, 10, 11, 12, 14, 15, 16, 23, 24, 25, 26, 27, 30, 31, 34, 35, 36, 38, 39, 42, 44, 47, 48, 49, 54, 55, 56, 58, 59, 62, 63, 64, 66, 71, 74, 75, 76, 79, 81, 82, 83, 86, 87, 94, 95, 96, 100, 103, 106, 108, 110, 111, 114, 119, 120, 121, 130, 131]

cp's OEIS Frontend

A227194 Natural numbers for which all sums Sum_{i=1..u} K(i/n) (with u ranging from 1 to n) are nonnegative, where K(i/n) is Kronecker symbol of i and n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	9
8	10
9	11
10	12
11	14
12	15
13	16
14	23
15	24
16	25
17	26
18	27
19	30
20	31
21	34
22	35
23	36
24	38
25	39
26	42
27	44
28	47
29	48
30	49
31	54
32	55
33	56
34	58
35	59
36	62
37	63
38	64
39	66
40	71
41	74
42	75
43	76
44	79
45	81
46	82
47	83
48	86
49	87
50	94
51	95
52	96
53	100
54	103
55	106
56	108
57	110
58	111
59	114
60	119
61	120
62	121
63	130
64	131

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	9
8	10
9	11
10	12
11	14
12	15
13	16
14	23
15	24
16	25
17	26
18	27
19	30
20	31
21	34
22	35
23	36
24	38
25	39
26	42
27	44
28	47
29	48
30	49
31	54
32	55
33	56
34	58
35	59
36	62
37	63
38	64
39	66
40	71
41	74
42	75
43	76
44	79
45	81
46	82
47	83
48	86
49	87
50	94
51	95
52	96
53	100
54	103
55	106
56	108
57	110
58	111
59	114
60	119
61	120
62	121
63	130
64	131

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	7
7	9
8	10
9	11
10	12
11	14
12	15
13	16
14	23
15	24
16	25
17	26
18	27
19	30
20	31
21	34
22	35
23	36
24	38
25	39
26	42
27	44
28	47
29	48
30	49
31	54
32	55
33	56
34	58
35	59
36	62
37	63
38	64
39	66
40	71
41	74
42	75
43	76
44	79
45	81
46	82
47	83
48	86
49	87
50	94
51	95
52	96
53	100
54	103
55	106
56	108
57	110
58	111
59	114
60	119
61	120
62	121
63	130
64	131