A137832 - cp's OEIS frontend

A137832 Limiting sequence when we start with the positive integers (A000027) and delete in step n >= 1 the last digit in the term at position n + a(n).

n	a(n)
1	1
2	3
3	4
4	5
5	7
6	8
7	10
8	11
9	1
10	1
11	1
12	16
13	1
14	1
15	1
16	21
17	2
18	23
19	2
20	25
21	2
22	27
23	2
24	29
25	3
26	31
27	3
28	3
29	34
30	3
31	3
32	37
33	3
34	3
35	40
36	4
37	43
38	44
39	45
40	47
41	48
42	49
43	5
44	51
45	52
46	53
47	5
48	5
49	56
50	57
51	5
52	5
53	6
54	61
55	6
56	6
57	6
58	65
59	6
60	67
61	69
62	7
63	7
64	72
65	7
66	7
67	75
68	76
69	7
70	7
71	79
72	8
73	82
74	83
75	84
76	8

[1, 3, 4, 5, 7, 8, 10, 11, 1, 1, 1, 16, 1, 1, 1, 21, 2, 23, 2, 25, 2, 27, 2, 29, 3, 31, 3, 3, 34, 3, 3, 37, 3, 3, 40, 4, 43, 44, 45, 47, 48, 49, 5, 51, 52, 53, 5, 5, 56, 57, 5, 5, 6, 61, 6, 6, 6, 65, 6, 67, 69, 7, 7, 72, 7, 7, 75, 76, 7, 7, 79, 8, 82, 83, 84, 8]

cp's OEIS Frontend

A137832 Limiting sequence when we start with the positive integers (A000027) and delete in step n >= 1 the last digit in the term at position n + a(n).

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	5
5	7
6	8
7	10
8	11
9	1
10	1
11	1
12	16
13	1
14	1
15	1
16	21
17	2
18	23
19	2
20	25
21	2
22	27
23	2
24	29
25	3
26	31
27	3
28	3
29	34
30	3
31	3
32	37
33	3
34	3
35	40
36	4
37	43
38	44
39	45
40	47
41	48
42	49
43	5
44	51
45	52
46	53
47	5
48	5
49	56
50	57
51	5
52	5
53	6
54	61
55	6
56	6
57	6
58	65
59	6
60	67
61	69
62	7
63	7
64	72
65	7
66	7
67	75
68	76
69	7
70	7
71	79
72	8
73	82
74	83
75	84
76	8

n	a(n)
1	1
2	3
3	4
4	5
5	7
6	8
7	10
8	11
9	1
10	1
11	1
12	16
13	1
14	1
15	1
16	21
17	2
18	23
19	2
20	25
21	2
22	27
23	2
24	29
25	3
26	31
27	3
28	3
29	34
30	3
31	3
32	37
33	3
34	3
35	40
36	4
37	43
38	44
39	45
40	47
41	48
42	49
43	5
44	51
45	52
46	53
47	5
48	5
49	56
50	57
51	5
52	5
53	6
54	61
55	6
56	6
57	6
58	65
59	6
60	67
61	69
62	7
63	7
64	72
65	7
66	7
67	75
68	76
69	7
70	7
71	79
72	8
73	82
74	83
75	84
76	8

n	a(n)
1	1
2	3
3	4
4	5
5	7
6	8
7	10
8	11
9	1
10	1
11	1
12	16
13	1
14	1
15	1
16	21
17	2
18	23
19	2
20	25
21	2
22	27
23	2
24	29
25	3
26	31
27	3
28	3
29	34
30	3
31	3
32	37
33	3
34	3
35	40
36	4
37	43
38	44
39	45
40	47
41	48
42	49
43	5
44	51
45	52
46	53
47	5
48	5
49	56
50	57
51	5
52	5
53	6
54	61
55	6
56	6
57	6
58	65
59	6
60	67
61	69
62	7
63	7
64	72
65	7
66	7
67	75
68	76
69	7
70	7
71	79
72	8
73	82
74	83
75	84
76	8