A080030 - cp's OEIS frontend

A080030 a(n) is taken to be the smallest positive integer not already present which is consistent with the condition "n is a member of the sequence if and only if a(n) is congruent to 1 mod 3".

n	a(n)
0	2
1	1
2	4
3	5
4	7
5	10
6	8
7	13
8	16
9	11
10	19
11	22
12	14
13	25
14	28
15	17
16	31
17	34
18	20
19	37
20	40
21	23
22	43
23	46
24	26
25	49
26	52
27	29
28	55
29	58
30	32
31	61
32	64
33	35
34	67
35	70
36	38
37	73
38	76
39	41
40	79
41	82
42	44
43	85
44	88
45	47
46	91
47	94
48	50
49	97
50	100
51	53
52	103
53	106
54	56
55	109
56	112
57	59
58	115
59	118
60	62
61	121
62	124
63	65
64	127
65	130
66	68

[2, 1, 4, 5, 7, 10, 8, 13, 16, 11, 19, 22, 14, 25, 28, 17, 31, 34, 20, 37, 40, 23, 43, 46, 26, 49, 52, 29, 55, 58, 32, 61, 64, 35, 67, 70, 38, 73, 76, 41, 79, 82, 44, 85, 88, 47, 91, 94, 50, 97, 100, 53, 103, 106, 56, 109, 112, 59, 115, 118, 62, 121, 124, 65, 127, 130, 68]

cp's OEIS Frontend

A080030 a(n) is taken to be the smallest positive integer not already present which is consistent with the condition "n is a member of the sequence if and only if a(n) is congruent to 1 mod 3".

Table of values

List of values

n	a(n)
0	2
1	1
2	4
3	5
4	7
5	10
6	8
7	13
8	16
9	11
10	19
11	22
12	14
13	25
14	28
15	17
16	31
17	34
18	20
19	37
20	40
21	23
22	43
23	46
24	26
25	49
26	52
27	29
28	55
29	58
30	32
31	61
32	64
33	35
34	67
35	70
36	38
37	73
38	76
39	41
40	79
41	82
42	44
43	85
44	88
45	47
46	91
47	94
48	50
49	97
50	100
51	53
52	103
53	106
54	56
55	109
56	112
57	59
58	115
59	118
60	62
61	121
62	124
63	65
64	127
65	130
66	68

n	a(n)
0	2
1	1
2	4
3	5
4	7
5	10
6	8
7	13
8	16
9	11
10	19
11	22
12	14
13	25
14	28
15	17
16	31
17	34
18	20
19	37
20	40
21	23
22	43
23	46
24	26
25	49
26	52
27	29
28	55
29	58
30	32
31	61
32	64
33	35
34	67
35	70
36	38
37	73
38	76
39	41
40	79
41	82
42	44
43	85
44	88
45	47
46	91
47	94
48	50
49	97
50	100
51	53
52	103
53	106
54	56
55	109
56	112
57	59
58	115
59	118
60	62
61	121
62	124
63	65
64	127
65	130
66	68

n	a(n)
0	2
1	1
2	4
3	5
4	7
5	10
6	8
7	13
8	16
9	11
10	19
11	22
12	14
13	25
14	28
15	17
16	31
17	34
18	20
19	37
20	40
21	23
22	43
23	46
24	26
25	49
26	52
27	29
28	55
29	58
30	32
31	61
32	64
33	35
34	67
35	70
36	38
37	73
38	76
39	41
40	79
41	82
42	44
43	85
44	88
45	47
46	91
47	94
48	50
49	97
50	100
51	53
52	103
53	106
54	56
55	109
56	112
57	59
58	115
59	118
60	62
61	121
62	124
63	65
64	127
65	130
66	68