A137898 - cp's OEIS frontend

A137898 Limiting sequence when we start with positive integers (A000027) and at step n >= 1 add to the term at position n + a(n) the value of the term at position n+a(n)+1.

n	a(n)
1	1
2	5
3	3
4	4
5	5
6	21
7	15
8	17
9	9
10	21
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	37
19	19
20	20
21	21
22	68
23	23
24	75
25	51
26	81
27	55
28	57
29	29
30	93
31	63
32	65
33	33
34	69
35	35
36	36
37	37
38	77
39	39
40	81
41	41
42	85
43	43
44	44
45	45
46	93
47	47
48	48

[1, 5, 3, 4, 5, 21, 15, 17, 9, 21, 11, 12, 13, 14, 15, 16, 17, 37, 19, 20, 21, 68, 23, 75, 51, 81, 55, 57, 29, 93, 63, 65, 33, 69, 35, 36, 37, 77, 39, 81, 41, 85, 43, 44, 45, 93, 47, 48]

cp's OEIS Frontend

A137898 Limiting sequence when we start with positive integers (A000027) and at step n >= 1 add to the term at position n + a(n) the value of the term at position n+a(n)+1.

Table of values

List of values

n	a(n)
1	1
2	5
3	3
4	4
5	5
6	21
7	15
8	17
9	9
10	21
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	37
19	19
20	20
21	21
22	68
23	23
24	75
25	51
26	81
27	55
28	57
29	29
30	93
31	63
32	65
33	33
34	69
35	35
36	36
37	37
38	77
39	39
40	81
41	41
42	85
43	43
44	44
45	45
46	93
47	47
48	48

n	a(n)
1	1
2	5
3	3
4	4
5	5
6	21
7	15
8	17
9	9
10	21
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	37
19	19
20	20
21	21
22	68
23	23
24	75
25	51
26	81
27	55
28	57
29	29
30	93
31	63
32	65
33	33
34	69
35	35
36	36
37	37
38	77
39	39
40	81
41	41
42	85
43	43
44	44
45	45
46	93
47	47
48	48

n	a(n)
1	1
2	5
3	3
4	4
5	5
6	21
7	15
8	17
9	9
10	21
11	11
12	12
13	13
14	14
15	15
16	16
17	17
18	37
19	19
20	20
21	21
22	68
23	23
24	75
25	51
26	81
27	55
28	57
29	29
30	93
31	63
32	65
33	33
34	69
35	35
36	36
37	37
38	77
39	39
40	81
41	41
42	85
43	43
44	44
45	45
46	93
47	47
48	48