A080720 - cp's OEIS frontend

A080720 a(0) = 5; 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	5
1	7
2	8
3	10
4	11
5	12
6	13
7	15
8	18
9	19
10	21
11	24
12	27
13	30
14	31
15	33
16	34
17	35
18	36
19	39
20	40
21	42
22	43
23	44
24	45
25	46
26	47
27	48
28	49
29	50
30	51
31	54
32	55
33	57
34	60
35	63
36	66
37	67
38	68
39	69
40	72
41	73
42	75
43	78
44	81
45	84
46	87
47	90
48	93
49	96
50	99
51	102
52	103
53	104
54	105
55	108
56	109
57	111
58	112
59	113
60	114
61	115
62	116
63	117
64	118
65	119

[5, 7, 8, 10, 11, 12, 13, 15, 18, 19, 21, 24, 27, 30, 31, 33, 34, 35, 36, 39, 40, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 54, 55, 57, 60, 63, 66, 67, 68, 69, 72, 73, 75, 78, 81, 84, 87, 90, 93, 96, 99, 102, 103, 104, 105, 108, 109, 111, 112, 113, 114, 115, 116, 117, 118, 119]

cp's OEIS Frontend

A080720 a(0) = 5; 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	5
1	7
2	8
3	10
4	11
5	12
6	13
7	15
8	18
9	19
10	21
11	24
12	27
13	30
14	31
15	33
16	34
17	35
18	36
19	39
20	40
21	42
22	43
23	44
24	45
25	46
26	47
27	48
28	49
29	50
30	51
31	54
32	55
33	57
34	60
35	63
36	66
37	67
38	68
39	69
40	72
41	73
42	75
43	78
44	81
45	84
46	87
47	90
48	93
49	96
50	99
51	102
52	103
53	104
54	105
55	108
56	109
57	111
58	112
59	113
60	114
61	115
62	116
63	117
64	118
65	119

n	a(n)
0	5
1	7
2	8
3	10
4	11
5	12
6	13
7	15
8	18
9	19
10	21
11	24
12	27
13	30
14	31
15	33
16	34
17	35
18	36
19	39
20	40
21	42
22	43
23	44
24	45
25	46
26	47
27	48
28	49
29	50
30	51
31	54
32	55
33	57
34	60
35	63
36	66
37	67
38	68
39	69
40	72
41	73
42	75
43	78
44	81
45	84
46	87
47	90
48	93
49	96
50	99
51	102
52	103
53	104
54	105
55	108
56	109
57	111
58	112
59	113
60	114
61	115
62	116
63	117
64	118
65	119

n	a(n)
0	5
1	7
2	8
3	10
4	11
5	12
6	13
7	15
8	18
9	19
10	21
11	24
12	27
13	30
14	31
15	33
16	34
17	35
18	36
19	39
20	40
21	42
22	43
23	44
24	45
25	46
26	47
27	48
28	49
29	50
30	51
31	54
32	55
33	57
34	60
35	63
36	66
37	67
38	68
39	69
40	72
41	73
42	75
43	78
44	81
45	84
46	87
47	90
48	93
49	96
50	99
51	102
52	103
53	104
54	105
55	108
56	109
57	111
58	112
59	113
60	114
61	115
62	116
63	117
64	118
65	119