A080034 - cp's OEIS frontend

A080034 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 3 mod 4".

n	a(n)
0	1
1	3
2	4
3	7
4	11
5	6
6	15
7	19
8	9
9	23
10	12
11	27
12	31
13	14
14	35
15	39
16	17
17	43
18	20
19	47
20	51
21	22
22	55
23	59
24	25
25	63
26	28
27	67
28	71
29	30
30	75
31	79
32	33
33	83
34	36
35	87
36	91
37	38
38	95
39	99
40	41
41	103
42	44
43	107
44	111
45	46
46	115
47	119
48	49
49	123
50	52
51	127
52	131
53	54
54	135
55	139
56	57
57	143
58	60
59	147
60	151
61	62
62	155
63	159
64	65
65	163

[1, 3, 4, 7, 11, 6, 15, 19, 9, 23, 12, 27, 31, 14, 35, 39, 17, 43, 20, 47, 51, 22, 55, 59, 25, 63, 28, 67, 71, 30, 75, 79, 33, 83, 36, 87, 91, 38, 95, 99, 41, 103, 44, 107, 111, 46, 115, 119, 49, 123, 52, 127, 131, 54, 135, 139, 57, 143, 60, 147, 151, 62, 155, 159, 65, 163]

cp's OEIS Frontend

A080034 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 3 mod 4".

Table of values

List of values

n	a(n)
0	1
1	3
2	4
3	7
4	11
5	6
6	15
7	19
8	9
9	23
10	12
11	27
12	31
13	14
14	35
15	39
16	17
17	43
18	20
19	47
20	51
21	22
22	55
23	59
24	25
25	63
26	28
27	67
28	71
29	30
30	75
31	79
32	33
33	83
34	36
35	87
36	91
37	38
38	95
39	99
40	41
41	103
42	44
43	107
44	111
45	46
46	115
47	119
48	49
49	123
50	52
51	127
52	131
53	54
54	135
55	139
56	57
57	143
58	60
59	147
60	151
61	62
62	155
63	159
64	65
65	163

n	a(n)
0	1
1	3
2	4
3	7
4	11
5	6
6	15
7	19
8	9
9	23
10	12
11	27
12	31
13	14
14	35
15	39
16	17
17	43
18	20
19	47
20	51
21	22
22	55
23	59
24	25
25	63
26	28
27	67
28	71
29	30
30	75
31	79
32	33
33	83
34	36
35	87
36	91
37	38
38	95
39	99
40	41
41	103
42	44
43	107
44	111
45	46
46	115
47	119
48	49
49	123
50	52
51	127
52	131
53	54
54	135
55	139
56	57
57	143
58	60
59	147
60	151
61	62
62	155
63	159
64	65
65	163

n	a(n)
0	1
1	3
2	4
3	7
4	11
5	6
6	15
7	19
8	9
9	23
10	12
11	27
12	31
13	14
14	35
15	39
16	17
17	43
18	20
19	47
20	51
21	22
22	55
23	59
24	25
25	63
26	28
27	67
28	71
29	30
30	75
31	79
32	33
33	83
34	36
35	87
36	91
37	38
38	95
39	99
40	41
41	103
42	44
43	107
44	111
45	46
46	115
47	119
48	49
49	123
50	52
51	127
52	131
53	54
54	135
55	139
56	57
57	143
58	60
59	147
60	151
61	62
62	155
63	159
64	65
65	163