A080646 - cp's OEIS frontend

A080646 a(1) = 3; for n>1, a(n) is taken to be the smallest integer greater than a(n-1) which is consistent with the condition "if n is a member of the sequence then a(n) is divisible by 3".

n	a(n)
1	3
2	4
3	8
4	12
5	13
6	14
7	15
8	16
9	17
10	18
11	19
12	20
13	24
14	28
15	32
16	36
17	40
18	44
19	48
20	52
21	53
22	54
23	55
24	56
25	57
26	58
27	59
28	60
29	61
30	62
31	63
32	64
33	65
34	66
35	67
36	68
37	69
38	70
39	71
40	72
41	73
42	74
43	75
44	76
45	77
46	78
47	79
48	80
49	81
50	82
51	83
52	84
53	88
54	92
55	96
56	100
57	104
58	108
59	112
60	116
61	120
62	124
63	128
64	132
65	136
66	140
67	144
68	148
69	152
70	156
71	160
72	164
73	168

[3, 4, 8, 12, 13, 14, 15, 16, 17, 18, 19, 20, 24, 28, 32, 36, 40, 44, 48, 52, 53, 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, 82, 83, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168]

cp's OEIS Frontend

A080646 a(1) = 3; for n>1, a(n) is taken to be the smallest integer greater than a(n-1) which is consistent with the condition "if n is a member of the sequence then a(n) is divisible by 3".

Table of values

List of values

n	a(n)
1	3
2	4
3	8
4	12
5	13
6	14
7	15
8	16
9	17
10	18
11	19
12	20
13	24
14	28
15	32
16	36
17	40
18	44
19	48
20	52
21	53
22	54
23	55
24	56
25	57
26	58
27	59
28	60
29	61
30	62
31	63
32	64
33	65
34	66
35	67
36	68
37	69
38	70
39	71
40	72
41	73
42	74
43	75
44	76
45	77
46	78
47	79
48	80
49	81
50	82
51	83
52	84
53	88
54	92
55	96
56	100
57	104
58	108
59	112
60	116
61	120
62	124
63	128
64	132
65	136
66	140
67	144
68	148
69	152
70	156
71	160
72	164
73	168

n	a(n)
1	3
2	4
3	8
4	12
5	13
6	14
7	15
8	16
9	17
10	18
11	19
12	20
13	24
14	28
15	32
16	36
17	40
18	44
19	48
20	52
21	53
22	54
23	55
24	56
25	57
26	58
27	59
28	60
29	61
30	62
31	63
32	64
33	65
34	66
35	67
36	68
37	69
38	70
39	71
40	72
41	73
42	74
43	75
44	76
45	77
46	78
47	79
48	80
49	81
50	82
51	83
52	84
53	88
54	92
55	96
56	100
57	104
58	108
59	112
60	116
61	120
62	124
63	128
64	132
65	136
66	140
67	144
68	148
69	152
70	156
71	160
72	164
73	168

n	a(n)
1	3
2	4
3	8
4	12
5	13
6	14
7	15
8	16
9	17
10	18
11	19
12	20
13	24
14	28
15	32
16	36
17	40
18	44
19	48
20	52
21	53
22	54
23	55
24	56
25	57
26	58
27	59
28	60
29	61
30	62
31	63
32	64
33	65
34	66
35	67
36	68
37	69
38	70
39	71
40	72
41	73
42	74
43	75
44	76
45	77
46	78
47	79
48	80
49	81
50	82
51	83
52	84
53	88
54	92
55	96
56	100
57	104
58	108
59	112
60	116
61	120
62	124
63	128
64	132
65	136
66	140
67	144
68	148
69	152
70	156
71	160
72	164
73	168