A003605 - cp's OEIS frontend

A003605 Unique monotonic sequence of nonnegative integers satisfying a(a(n)) = 3n.

n	a(n)
0	0
1	2
2	3
3	6
4	7
5	8
6	9
7	12
8	15
9	18
10	19
11	20
12	21
13	22
14	23
15	24
16	25
17	26
18	27
19	30
20	33
21	36
22	39
23	42
24	45
25	48
26	51
27	54
28	55
29	56
30	57
31	58
32	59
33	60
34	61
35	62
36	63
37	64
38	65
39	66
40	67
41	68
42	69
43	70
44	71
45	72
46	73
47	74
48	75
49	76
50	77
51	78
52	79
53	80
54	81
55	84
56	87
57	90
58	93
59	96
60	99
61	102
62	105
63	108
64	111
65	114
66	117
67	120

[0, 2, 3, 6, 7, 8, 9, 12, 15, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 84, 87, 90, 93, 96, 99, 102, 105, 108, 111, 114, 117, 120]

cp's OEIS Frontend

A003605 Unique monotonic sequence of nonnegative integers satisfying a(a(n)) = 3n.

Table of values

List of values

n	a(n)
0	0
1	2
2	3
3	6
4	7
5	8
6	9
7	12
8	15
9	18
10	19
11	20
12	21
13	22
14	23
15	24
16	25
17	26
18	27
19	30
20	33
21	36
22	39
23	42
24	45
25	48
26	51
27	54
28	55
29	56
30	57
31	58
32	59
33	60
34	61
35	62
36	63
37	64
38	65
39	66
40	67
41	68
42	69
43	70
44	71
45	72
46	73
47	74
48	75
49	76
50	77
51	78
52	79
53	80
54	81
55	84
56	87
57	90
58	93
59	96
60	99
61	102
62	105
63	108
64	111
65	114
66	117
67	120

n	a(n)
0	0
1	2
2	3
3	6
4	7
5	8
6	9
7	12
8	15
9	18
10	19
11	20
12	21
13	22
14	23
15	24
16	25
17	26
18	27
19	30
20	33
21	36
22	39
23	42
24	45
25	48
26	51
27	54
28	55
29	56
30	57
31	58
32	59
33	60
34	61
35	62
36	63
37	64
38	65
39	66
40	67
41	68
42	69
43	70
44	71
45	72
46	73
47	74
48	75
49	76
50	77
51	78
52	79
53	80
54	81
55	84
56	87
57	90
58	93
59	96
60	99
61	102
62	105
63	108
64	111
65	114
66	117
67	120

n	a(n)
0	0
1	2
2	3
3	6
4	7
5	8
6	9
7	12
8	15
9	18
10	19
11	20
12	21
13	22
14	23
15	24
16	25
17	26
18	27
19	30
20	33
21	36
22	39
23	42
24	45
25	48
26	51
27	54
28	55
29	56
30	57
31	58
32	59
33	60
34	61
35	62
36	63
37	64
38	65
39	66
40	67
41	68
42	69
43	70
44	71
45	72
46	73
47	74
48	75
49	76
50	77
51	78
52	79
53	80
54	81
55	84
56	87
57	90
58	93
59	96
60	99
61	102
62	105
63	108
64	111
65	114
66	117
67	120