A211338 - cp's OEIS frontend

A211338 Numbers k for which the number of divisors, tau(k), is congruent to 2 modulo 3.

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	16
8	17
9	19
10	23
11	24
12	29
13	30
14	31
15	37
16	40
17	41
18	42
19	43
20	47
21	53
22	54
23	56
24	59
25	61
26	66
27	67
28	70
29	71
30	73
31	78
32	79
33	81
34	83
35	88
36	89
37	97
38	101
39	102
40	103
41	104
42	105
43	107
44	109
45	110
46	113
47	114
48	127
49	128
50	130
51	131
52	135
53	136
54	137
55	138
56	139
57	149
58	151
59	152
60	154

[2, 3, 5, 7, 11, 13, 16, 17, 19, 23, 24, 29, 30, 31, 37, 40, 41, 42, 43, 47, 53, 54, 56, 59, 61, 66, 67, 70, 71, 73, 78, 79, 81, 83, 88, 89, 97, 101, 102, 103, 104, 105, 107, 109, 110, 113, 114, 127, 128, 130, 131, 135, 136, 137, 138, 139, 149, 151, 152, 154]

cp's OEIS Frontend

A211338 Numbers k for which the number of divisors, tau(k), is congruent to 2 modulo 3.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	16
8	17
9	19
10	23
11	24
12	29
13	30
14	31
15	37
16	40
17	41
18	42
19	43
20	47
21	53
22	54
23	56
24	59
25	61
26	66
27	67
28	70
29	71
30	73
31	78
32	79
33	81
34	83
35	88
36	89
37	97
38	101
39	102
40	103
41	104
42	105
43	107
44	109
45	110
46	113
47	114
48	127
49	128
50	130
51	131
52	135
53	136
54	137
55	138
56	139
57	149
58	151
59	152
60	154

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	16
8	17
9	19
10	23
11	24
12	29
13	30
14	31
15	37
16	40
17	41
18	42
19	43
20	47
21	53
22	54
23	56
24	59
25	61
26	66
27	67
28	70
29	71
30	73
31	78
32	79
33	81
34	83
35	88
36	89
37	97
38	101
39	102
40	103
41	104
42	105
43	107
44	109
45	110
46	113
47	114
48	127
49	128
50	130
51	131
52	135
53	136
54	137
55	138
56	139
57	149
58	151
59	152
60	154

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	16
8	17
9	19
10	23
11	24
12	29
13	30
14	31
15	37
16	40
17	41
18	42
19	43
20	47
21	53
22	54
23	56
24	59
25	61
26	66
27	67
28	70
29	71
30	73
31	78
32	79
33	81
34	83
35	88
36	89
37	97
38	101
39	102
40	103
41	104
42	105
43	107
44	109
45	110
46	113
47	114
48	127
49	128
50	130
51	131
52	135
53	136
54	137
55	138
56	139
57	149
58	151
59	152
60	154