A322660 - cp's OEIS frontend

A322660 Numbers k > 1 for which the number of representations as an m-gonal number P(m,r) = r((m-2)r-(m-4))/2, with m>1, r>1, equals the number of divisors of k.

n	a(n)
1	3
2	5
3	7
4	9
5	11
6	13
7	15
8	17
9	19
10	21
11	23
12	25
13	29
14	31
15	37
16	41
17	43
18	47
19	49
20	51
21	53
22	55
23	59
24	61
25	67
26	71
27	73
28	79
29	81
30	83
31	89
32	91
33	97
34	101
35	103
36	107
37	109
38	111
39	113
40	121
41	127
42	131
43	137
44	139
45	141
46	145
47	149
48	151
49	157
50	163
51	167
52	169
53	173
54	179
55	181
56	191
57	193
58	197
59	199
60	201

[3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 29, 31, 37, 41, 43, 47, 49, 51, 53, 55, 59, 61, 67, 71, 73, 79, 81, 83, 89, 91, 97, 101, 103, 107, 109, 111, 113, 121, 127, 131, 137, 139, 141, 145, 149, 151, 157, 163, 167, 169, 173, 179, 181, 191, 193, 197, 199, 201]

cp's OEIS Frontend

A322660 Numbers k > 1 for which the number of representations as an m-gonal number P(m,r) = r((m-2)r-(m-4))/2, with m>1, r>1, equals the number of divisors of k.

Table of values

List of values

n	a(n)
1	3
2	5
3	7
4	9
5	11
6	13
7	15
8	17
9	19
10	21
11	23
12	25
13	29
14	31
15	37
16	41
17	43
18	47
19	49
20	51
21	53
22	55
23	59
24	61
25	67
26	71
27	73
28	79
29	81
30	83
31	89
32	91
33	97
34	101
35	103
36	107
37	109
38	111
39	113
40	121
41	127
42	131
43	137
44	139
45	141
46	145
47	149
48	151
49	157
50	163
51	167
52	169
53	173
54	179
55	181
56	191
57	193
58	197
59	199
60	201

n	a(n)
1	3
2	5
3	7
4	9
5	11
6	13
7	15
8	17
9	19
10	21
11	23
12	25
13	29
14	31
15	37
16	41
17	43
18	47
19	49
20	51
21	53
22	55
23	59
24	61
25	67
26	71
27	73
28	79
29	81
30	83
31	89
32	91
33	97
34	101
35	103
36	107
37	109
38	111
39	113
40	121
41	127
42	131
43	137
44	139
45	141
46	145
47	149
48	151
49	157
50	163
51	167
52	169
53	173
54	179
55	181
56	191
57	193
58	197
59	199
60	201

cp's OEIS Frontend

A322660 Numbers k > 1 for which the number of representations as an m-gonal number P(m,r) = r*((m-2)*r-(m-4))/2, with m>1, r>1, equals the number of divisors of k.

Table of values

List of values

A322660 Numbers k > 1 for which the number of representations as an m-gonal number P(m,r) = r((m-2)r-(m-4))/2, with m>1, r>1, equals the number of divisors of k.

n	a(n)
1	3
2	5
3	7
4	9
5	11
6	13
7	15
8	17
9	19
10	21
11	23
12	25
13	29
14	31
15	37
16	41
17	43
18	47
19	49
20	51
21	53
22	55
23	59
24	61
25	67
26	71
27	73
28	79
29	81
30	83
31	89
32	91
33	97
34	101
35	103
36	107
37	109
38	111
39	113
40	121
41	127
42	131
43	137
44	139
45	141
46	145
47	149
48	151
49	157
50	163
51	167
52	169
53	173
54	179
55	181
56	191
57	193
58	197
59	199
60	201