A124063 - cp's OEIS frontend

A124063 a(1)=a(2)=1. a(n) = the sum of the terms, from among the first (n-2) terms of the sequence, which divide a(n-1).

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	6
8	11
9	3
10	9
11	12
12	20
13	5
14	3
15	12
16	35
17	8
18	5
19	8
20	13
21	3
22	15
23	28
24	5
25	13
26	16
27	21
28	18
29	35
30	53
31	3
32	18
33	56
34	49
35	3
36	21
37	45
38	63
39	75
40	54
41	77
42	14
43	5
44	18
45	77
46	91
47	29
48	3
49	24
50	75
51	137
52	3
53	27
54	39
55	56
56	119
57	3
58	30
59	76
60	5
61	23
62	3
63	33
64	47
65	3
66	36
67	134
68	5
69	28
70	47
71	50
72	35
73	103
74	3
75	39
76	107
77	3
78	42

[1, 1, 1, 2, 3, 3, 6, 11, 3, 9, 12, 20, 5, 3, 12, 35, 8, 5, 8, 13, 3, 15, 28, 5, 13, 16, 21, 18, 35, 53, 3, 18, 56, 49, 3, 21, 45, 63, 75, 54, 77, 14, 5, 18, 77, 91, 29, 3, 24, 75, 137, 3, 27, 39, 56, 119, 3, 30, 76, 5, 23, 3, 33, 47, 3, 36, 134, 5, 28, 47, 50, 35, 103, 3, 39, 107, 3, 42]

cp's OEIS Frontend

A124063 a(1)=a(2)=1. a(n) = the sum of the terms, from among the first (n-2) terms of the sequence, which divide a(n-1).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	6
8	11
9	3
10	9
11	12
12	20
13	5
14	3
15	12
16	35
17	8
18	5
19	8
20	13
21	3
22	15
23	28
24	5
25	13
26	16
27	21
28	18
29	35
30	53
31	3
32	18
33	56
34	49
35	3
36	21
37	45
38	63
39	75
40	54
41	77
42	14
43	5
44	18
45	77
46	91
47	29
48	3
49	24
50	75
51	137
52	3
53	27
54	39
55	56
56	119
57	3
58	30
59	76
60	5
61	23
62	3
63	33
64	47
65	3
66	36
67	134
68	5
69	28
70	47
71	50
72	35
73	103
74	3
75	39
76	107
77	3
78	42

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	6
8	11
9	3
10	9
11	12
12	20
13	5
14	3
15	12
16	35
17	8
18	5
19	8
20	13
21	3
22	15
23	28
24	5
25	13
26	16
27	21
28	18
29	35
30	53
31	3
32	18
33	56
34	49
35	3
36	21
37	45
38	63
39	75
40	54
41	77
42	14
43	5
44	18
45	77
46	91
47	29
48	3
49	24
50	75
51	137
52	3
53	27
54	39
55	56
56	119
57	3
58	30
59	76
60	5
61	23
62	3
63	33
64	47
65	3
66	36
67	134
68	5
69	28
70	47
71	50
72	35
73	103
74	3
75	39
76	107
77	3
78	42

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	6
8	11
9	3
10	9
11	12
12	20
13	5
14	3
15	12
16	35
17	8
18	5
19	8
20	13
21	3
22	15
23	28
24	5
25	13
26	16
27	21
28	18
29	35
30	53
31	3
32	18
33	56
34	49
35	3
36	21
37	45
38	63
39	75
40	54
41	77
42	14
43	5
44	18
45	77
46	91
47	29
48	3
49	24
50	75
51	137
52	3
53	27
54	39
55	56
56	119
57	3
58	30
59	76
60	5
61	23
62	3
63	33
64	47
65	3
66	36
67	134
68	5
69	28
70	47
71	50
72	35
73	103
74	3
75	39
76	107
77	3
78	42