A208239 - cp's OEIS frontend

A208239 Triangle read by rows: T(n,m) = n + k - n/k, where k is the m-th divisor of n; 1 <= m <= tau(n).

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	1
7	4
8	7
9	1
10	9
11	1
12	5
13	7
14	11
15	1
16	13
17	1
18	6
19	10
20	15
21	1
22	9
23	17
24	1
25	7
26	13
27	19
28	1
29	21
30	1
31	8
32	11
33	13
34	16
35	23
36	1
37	25
38	1
39	9
40	19
41	27
42	1
43	13
44	17
45	29
46	1
47	10
48	16
49	22
50	31
51	1
52	33
53	1
54	11
55	15
56	21
57	25
58	35
59	1
60	37
61	1
62	12
63	19
64	21
65	28
66	39
67	1
68	17
69	25
70	41
71	1
72	13
73	31
74	43
75	1
76	45
77	1
78	14
79	19
80	22
81	26

[1, 1, 3, 1, 5, 1, 4, 7, 1, 9, 1, 5, 7, 11, 1, 13, 1, 6, 10, 15, 1, 9, 17, 1, 7, 13, 19, 1, 21, 1, 8, 11, 13, 16, 23, 1, 25, 1, 9, 19, 27, 1, 13, 17, 29, 1, 10, 16, 22, 31, 1, 33, 1, 11, 15, 21, 25, 35, 1, 37, 1, 12, 19, 21, 28, 39, 1, 17, 25, 41, 1, 13, 31, 43, 1, 45, 1, 14, 19, 22, 26]

cp's OEIS Frontend

A208239 Triangle read by rows: T(n,m) = n + k - n/k, where k is the m-th divisor of n; 1 <= m <= tau(n).

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	1
7	4
8	7
9	1
10	9
11	1
12	5
13	7
14	11
15	1
16	13
17	1
18	6
19	10
20	15
21	1
22	9
23	17
24	1
25	7
26	13
27	19
28	1
29	21
30	1
31	8
32	11
33	13
34	16
35	23
36	1
37	25
38	1
39	9
40	19
41	27
42	1
43	13
44	17
45	29
46	1
47	10
48	16
49	22
50	31
51	1
52	33
53	1
54	11
55	15
56	21
57	25
58	35
59	1
60	37
61	1
62	12
63	19
64	21
65	28
66	39
67	1
68	17
69	25
70	41
71	1
72	13
73	31
74	43
75	1
76	45
77	1
78	14
79	19
80	22
81	26

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	1
7	4
8	7
9	1
10	9
11	1
12	5
13	7
14	11
15	1
16	13
17	1
18	6
19	10
20	15
21	1
22	9
23	17
24	1
25	7
26	13
27	19
28	1
29	21
30	1
31	8
32	11
33	13
34	16
35	23
36	1
37	25
38	1
39	9
40	19
41	27
42	1
43	13
44	17
45	29
46	1
47	10
48	16
49	22
50	31
51	1
52	33
53	1
54	11
55	15
56	21
57	25
58	35
59	1
60	37
61	1
62	12
63	19
64	21
65	28
66	39
67	1
68	17
69	25
70	41
71	1
72	13
73	31
74	43
75	1
76	45
77	1
78	14
79	19
80	22
81	26

n	a(n)
1	1
2	1
3	3
4	1
5	5
6	1
7	4
8	7
9	1
10	9
11	1
12	5
13	7
14	11
15	1
16	13
17	1
18	6
19	10
20	15
21	1
22	9
23	17
24	1
25	7
26	13
27	19
28	1
29	21
30	1
31	8
32	11
33	13
34	16
35	23
36	1
37	25
38	1
39	9
40	19
41	27
42	1
43	13
44	17
45	29
46	1
47	10
48	16
49	22
50	31
51	1
52	33
53	1
54	11
55	15
56	21
57	25
58	35
59	1
60	37
61	1
62	12
63	19
64	21
65	28
66	39
67	1
68	17
69	25
70	41
71	1
72	13
73	31
74	43
75	1
76	45
77	1
78	14
79	19
80	22
81	26