A281409 - cp's OEIS frontend

A281409 Lexicographically first sequence of distinct terms, beginning with a(1)=5, with the property that each triple of consecutive terms contains a term that divides the sum of the other two terms.

n	a(n)
1	5
2	1
3	2
4	3
5	4
6	7
7	9
8	8
9	10
10	6
11	14
12	16
13	12
14	20
15	28
16	24
17	13
18	11
19	15
20	18
21	21
22	33
23	27
24	30
25	19
26	41
27	22
28	25
29	47
30	36
31	58
32	50
33	42
34	23
35	61
36	31
37	32
38	63
39	65
40	64
41	43
42	85
43	44
44	91
45	45
46	17
47	40
48	57
49	74
50	97
51	51
52	37
53	60
54	83
55	106
56	129
57	152
58	175
59	109
60	66
61	35
62	39
63	82
64	113
65	133
66	93

[5, 1, 2, 3, 4, 7, 9, 8, 10, 6, 14, 16, 12, 20, 28, 24, 13, 11, 15, 18, 21, 33, 27, 30, 19, 41, 22, 25, 47, 36, 58, 50, 42, 23, 61, 31, 32, 63, 65, 64, 43, 85, 44, 91, 45, 17, 40, 57, 74, 97, 51, 37, 60, 83, 106, 129, 152, 175, 109, 66, 35, 39, 82, 113, 133, 93]

cp's OEIS Frontend

A281409 Lexicographically first sequence of distinct terms, beginning with a(1)=5, with the property that each triple of consecutive terms contains a term that divides the sum of the other two terms.

Table of values

List of values

n	a(n)
1	5
2	1
3	2
4	3
5	4
6	7
7	9
8	8
9	10
10	6
11	14
12	16
13	12
14	20
15	28
16	24
17	13
18	11
19	15
20	18
21	21
22	33
23	27
24	30
25	19
26	41
27	22
28	25
29	47
30	36
31	58
32	50
33	42
34	23
35	61
36	31
37	32
38	63
39	65
40	64
41	43
42	85
43	44
44	91
45	45
46	17
47	40
48	57
49	74
50	97
51	51
52	37
53	60
54	83
55	106
56	129
57	152
58	175
59	109
60	66
61	35
62	39
63	82
64	113
65	133
66	93

n	a(n)
1	5
2	1
3	2
4	3
5	4
6	7
7	9
8	8
9	10
10	6
11	14
12	16
13	12
14	20
15	28
16	24
17	13
18	11
19	15
20	18
21	21
22	33
23	27
24	30
25	19
26	41
27	22
28	25
29	47
30	36
31	58
32	50
33	42
34	23
35	61
36	31
37	32
38	63
39	65
40	64
41	43
42	85
43	44
44	91
45	45
46	17
47	40
48	57
49	74
50	97
51	51
52	37
53	60
54	83
55	106
56	129
57	152
58	175
59	109
60	66
61	35
62	39
63	82
64	113
65	133
66	93

n	a(n)
1	5
2	1
3	2
4	3
5	4
6	7
7	9
8	8
9	10
10	6
11	14
12	16
13	12
14	20
15	28
16	24
17	13
18	11
19	15
20	18
21	21
22	33
23	27
24	30
25	19
26	41
27	22
28	25
29	47
30	36
31	58
32	50
33	42
34	23
35	61
36	31
37	32
38	63
39	65
40	64
41	43
42	85
43	44
44	91
45	45
46	17
47	40
48	57
49	74
50	97
51	51
52	37
53	60
54	83
55	106
56	129
57	152
58	175
59	109
60	66
61	35
62	39
63	82
64	113
65	133
66	93