A080033 - cp's OEIS frontend

A080033 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 a multiple of 4".

n	a(n)
0	0
1	2
2	4
3	5
4	8
5	12
6	7
7	16
8	20
9	10
10	24
11	13
12	28
13	32
14	15
15	36
16	40
17	18
18	44
19	21
20	48
21	52
22	23
23	56
24	60
25	26
26	64
27	29
28	68
29	72
30	31
31	76
32	80
33	34
34	84
35	37
36	88
37	92
38	39
39	96
40	100
41	42
42	104
43	45
44	108
45	112
46	47
47	116
48	120
49	50
50	124
51	53
52	128
53	132
54	55
55	136
56	140
57	58
58	144
59	61
60	148
61	152
62	63
63	156
64	160
65	66

[0, 2, 4, 5, 8, 12, 7, 16, 20, 10, 24, 13, 28, 32, 15, 36, 40, 18, 44, 21, 48, 52, 23, 56, 60, 26, 64, 29, 68, 72, 31, 76, 80, 34, 84, 37, 88, 92, 39, 96, 100, 42, 104, 45, 108, 112, 47, 116, 120, 50, 124, 53, 128, 132, 55, 136, 140, 58, 144, 61, 148, 152, 63, 156, 160, 66]

cp's OEIS Frontend

A080033 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 a multiple of 4".

Table of values

List of values

n	a(n)
0	0
1	2
2	4
3	5
4	8
5	12
6	7
7	16
8	20
9	10
10	24
11	13
12	28
13	32
14	15
15	36
16	40
17	18
18	44
19	21
20	48
21	52
22	23
23	56
24	60
25	26
26	64
27	29
28	68
29	72
30	31
31	76
32	80
33	34
34	84
35	37
36	88
37	92
38	39
39	96
40	100
41	42
42	104
43	45
44	108
45	112
46	47
47	116
48	120
49	50
50	124
51	53
52	128
53	132
54	55
55	136
56	140
57	58
58	144
59	61
60	148
61	152
62	63
63	156
64	160
65	66

n	a(n)
0	0
1	2
2	4
3	5
4	8
5	12
6	7
7	16
8	20
9	10
10	24
11	13
12	28
13	32
14	15
15	36
16	40
17	18
18	44
19	21
20	48
21	52
22	23
23	56
24	60
25	26
26	64
27	29
28	68
29	72
30	31
31	76
32	80
33	34
34	84
35	37
36	88
37	92
38	39
39	96
40	100
41	42
42	104
43	45
44	108
45	112
46	47
47	116
48	120
49	50
50	124
51	53
52	128
53	132
54	55
55	136
56	140
57	58
58	144
59	61
60	148
61	152
62	63
63	156
64	160
65	66

n	a(n)
0	0
1	2
2	4
3	5
4	8
5	12
6	7
7	16
8	20
9	10
10	24
11	13
12	28
13	32
14	15
15	36
16	40
17	18
18	44
19	21
20	48
21	52
22	23
23	56
24	60
25	26
26	64
27	29
28	68
29	72
30	31
31	76
32	80
33	34
34	84
35	37
36	88
37	92
38	39
39	96
40	100
41	42
42	104
43	45
44	108
45	112
46	47
47	116
48	120
49	50
50	124
51	53
52	128
53	132
54	55
55	136
56	140
57	58
58	144
59	61
60	148
61	152
62	63
63	156
64	160
65	66