A080728 - cp's OEIS frontend

A080728 a(0) = 3; 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) == 2 mod 3".

n	a(n)
0	3
1	4
2	6
3	8
4	11
5	12
6	14
7	15
8	17
9	18
10	19
11	20
12	23
13	24
14	26
15	29
16	30
17	32
18	35
19	38
20	41
21	42
22	43
23	44
24	47
25	48
26	50
27	51
28	52
29	53
30	56
31	57
32	59
33	60
34	61
35	62
36	63
37	64
38	65
39	66
40	67
41	68
42	71
43	74
44	77
45	78
46	79
47	80
48	83
49	84
50	86
51	89
52	92
53	95
54	96
55	97
56	98
57	101
58	102
59	104
60	107
61	110
62	113
63	116
64	119
65	122
66	125
67	128

[3, 4, 6, 8, 11, 12, 14, 15, 17, 18, 19, 20, 23, 24, 26, 29, 30, 32, 35, 38, 41, 42, 43, 44, 47, 48, 50, 51, 52, 53, 56, 57, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 71, 74, 77, 78, 79, 80, 83, 84, 86, 89, 92, 95, 96, 97, 98, 101, 102, 104, 107, 110, 113, 116, 119, 122, 125, 128]

cp's OEIS Frontend

A080728 a(0) = 3; 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) == 2 mod 3".

Table of values

List of values

n	a(n)
0	3
1	4
2	6
3	8
4	11
5	12
6	14
7	15
8	17
9	18
10	19
11	20
12	23
13	24
14	26
15	29
16	30
17	32
18	35
19	38
20	41
21	42
22	43
23	44
24	47
25	48
26	50
27	51
28	52
29	53
30	56
31	57
32	59
33	60
34	61
35	62
36	63
37	64
38	65
39	66
40	67
41	68
42	71
43	74
44	77
45	78
46	79
47	80
48	83
49	84
50	86
51	89
52	92
53	95
54	96
55	97
56	98
57	101
58	102
59	104
60	107
61	110
62	113
63	116
64	119
65	122
66	125
67	128

n	a(n)
0	3
1	4
2	6
3	8
4	11
5	12
6	14
7	15
8	17
9	18
10	19
11	20
12	23
13	24
14	26
15	29
16	30
17	32
18	35
19	38
20	41
21	42
22	43
23	44
24	47
25	48
26	50
27	51
28	52
29	53
30	56
31	57
32	59
33	60
34	61
35	62
36	63
37	64
38	65
39	66
40	67
41	68
42	71
43	74
44	77
45	78
46	79
47	80
48	83
49	84
50	86
51	89
52	92
53	95
54	96
55	97
56	98
57	101
58	102
59	104
60	107
61	110
62	113
63	116
64	119
65	122
66	125
67	128

n	a(n)
0	3
1	4
2	6
3	8
4	11
5	12
6	14
7	15
8	17
9	18
10	19
11	20
12	23
13	24
14	26
15	29
16	30
17	32
18	35
19	38
20	41
21	42
22	43
23	44
24	47
25	48
26	50
27	51
28	52
29	53
30	56
31	57
32	59
33	60
34	61
35	62
36	63
37	64
38	65
39	66
40	67
41	68
42	71
43	74
44	77
45	78
46	79
47	80
48	83
49	84
50	86
51	89
52	92
53	95
54	96
55	97
56	98
57	101
58	102
59	104
60	107
61	110
62	113
63	116
64	119
65	122
66	125
67	128