A022440 - cp's OEIS frontend

A022440 a(n) = c(n-1) + c(n-3) where c is the sequence of positive numbers not in a.

n	a(n)
1	3
2	4
3	5
4	7
5	10
6	15
7	19
8	21
9	24
10	26
11	29
12	31
13	34
14	37
15	40
16	43
17	47
18	50
19	53
20	57
21	60
22	63
23	67
24	69
25	73
26	75
27	79
28	81
29	85
30	87
31	90
32	93
33	95
34	99
35	101
36	105
37	107
38	110
39	113
40	115
41	119
42	121
43	125
44	127
45	130
46	133
47	136
48	139
49	142
50	145
51	148
52	151
53	154
54	157
55	160
56	163
57	166
58	169
59	172
60	175
61	179
62	181

[3, 4, 5, 7, 10, 15, 19, 21, 24, 26, 29, 31, 34, 37, 40, 43, 47, 50, 53, 57, 60, 63, 67, 69, 73, 75, 79, 81, 85, 87, 90, 93, 95, 99, 101, 105, 107, 110, 113, 115, 119, 121, 125, 127, 130, 133, 136, 139, 142, 145, 148, 151, 154, 157, 160, 163, 166, 169, 172, 175, 179, 181]

cp's OEIS Frontend

A022440 a(n) = c(n-1) + c(n-3) where c is the sequence of positive numbers not in a.

Table of values

List of values

n	a(n)
1	3
2	4
3	5
4	7
5	10
6	15
7	19
8	21
9	24
10	26
11	29
12	31
13	34
14	37
15	40
16	43
17	47
18	50
19	53
20	57
21	60
22	63
23	67
24	69
25	73
26	75
27	79
28	81
29	85
30	87
31	90
32	93
33	95
34	99
35	101
36	105
37	107
38	110
39	113
40	115
41	119
42	121
43	125
44	127
45	130
46	133
47	136
48	139
49	142
50	145
51	148
52	151
53	154
54	157
55	160
56	163
57	166
58	169
59	172
60	175
61	179
62	181

n	a(n)
1	3
2	4
3	5
4	7
5	10
6	15
7	19
8	21
9	24
10	26
11	29
12	31
13	34
14	37
15	40
16	43
17	47
18	50
19	53
20	57
21	60
22	63
23	67
24	69
25	73
26	75
27	79
28	81
29	85
30	87
31	90
32	93
33	95
34	99
35	101
36	105
37	107
38	110
39	113
40	115
41	119
42	121
43	125
44	127
45	130
46	133
47	136
48	139
49	142
50	145
51	148
52	151
53	154
54	157
55	160
56	163
57	166
58	169
59	172
60	175
61	179
62	181

n	a(n)
1	3
2	4
3	5
4	7
5	10
6	15
7	19
8	21
9	24
10	26
11	29
12	31
13	34
14	37
15	40
16	43
17	47
18	50
19	53
20	57
21	60
22	63
23	67
24	69
25	73
26	75
27	79
28	81
29	85
30	87
31	90
32	93
33	95
34	99
35	101
36	105
37	107
38	110
39	113
40	115
41	119
42	121
43	125
44	127
45	130
46	133
47	136
48	139
49	142
50	145
51	148
52	151
53	154
54	157
55	160
56	163
57	166
58	169
59	172
60	175
61	179
62	181