A080712 - cp's OEIS frontend

A080712 a(0) = 4; for n>0, a(n) is taken to be the smallest positive integer greater than a(n-1) which is consistent with the condition "n is a member of the sequence if and only if a(n) is a multiple of 3".

n	a(n)
0	4
1	5
2	7
3	8
4	9
5	12
6	13
7	15
8	18
9	21
10	22
11	23
12	24
13	27
14	28
15	30
16	31
17	32
18	33
19	34
20	35
21	36
22	39
23	42
24	45
25	46
26	47
27	48
28	51
29	52
30	54
31	57
32	60
33	63
34	66
35	69
36	72
37	73
38	74
39	75
40	76
41	77
42	78
43	79
44	80
45	81
46	84
47	87
48	90
49	91
50	92
51	93
52	96
53	97
54	99
55	100
56	101
57	102
58	103
59	104
60	105
61	106
62	107
63	108
64	109
65	110
66	111

[4, 5, 7, 8, 9, 12, 13, 15, 18, 21, 22, 23, 24, 27, 28, 30, 31, 32, 33, 34, 35, 36, 39, 42, 45, 46, 47, 48, 51, 52, 54, 57, 60, 63, 66, 69, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 84, 87, 90, 91, 92, 93, 96, 97, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111]

cp's OEIS Frontend

A080712 a(0) = 4; for n>0, a(n) is taken to be the smallest positive integer greater than a(n-1) which is consistent with the condition "n is a member of the sequence if and only if a(n) is a multiple of 3".

Table of values

List of values

n	a(n)
0	4
1	5
2	7
3	8
4	9
5	12
6	13
7	15
8	18
9	21
10	22
11	23
12	24
13	27
14	28
15	30
16	31
17	32
18	33
19	34
20	35
21	36
22	39
23	42
24	45
25	46
26	47
27	48
28	51
29	52
30	54
31	57
32	60
33	63
34	66
35	69
36	72
37	73
38	74
39	75
40	76
41	77
42	78
43	79
44	80
45	81
46	84
47	87
48	90
49	91
50	92
51	93
52	96
53	97
54	99
55	100
56	101
57	102
58	103
59	104
60	105
61	106
62	107
63	108
64	109
65	110
66	111

n	a(n)
0	4
1	5
2	7
3	8
4	9
5	12
6	13
7	15
8	18
9	21
10	22
11	23
12	24
13	27
14	28
15	30
16	31
17	32
18	33
19	34
20	35
21	36
22	39
23	42
24	45
25	46
26	47
27	48
28	51
29	52
30	54
31	57
32	60
33	63
34	66
35	69
36	72
37	73
38	74
39	75
40	76
41	77
42	78
43	79
44	80
45	81
46	84
47	87
48	90
49	91
50	92
51	93
52	96
53	97
54	99
55	100
56	101
57	102
58	103
59	104
60	105
61	106
62	107
63	108
64	109
65	110
66	111

n	a(n)
0	4
1	5
2	7
3	8
4	9
5	12
6	13
7	15
8	18
9	21
10	22
11	23
12	24
13	27
14	28
15	30
16	31
17	32
18	33
19	34
20	35
21	36
22	39
23	42
24	45
25	46
26	47
27	48
28	51
29	52
30	54
31	57
32	60
33	63
34	66
35	69
36	72
37	73
38	74
39	75
40	76
41	77
42	78
43	79
44	80
45	81
46	84
47	87
48	90
49	91
50	92
51	93
52	96
53	97
54	99
55	100
56	101
57	102
58	103
59	104
60	105
61	106
62	107
63	108
64	109
65	110
66	111