A022428 - cp's OEIS frontend

A022428 a(n) = c(n-1) + c(n-3) where c is the sequence of numbers not in a.

n	a(n)
0	1
1	2
2	4
3	9
4	12
5	14
6	17
7	19
8	23
9	26
10	29
11	33
12	36
13	39
14	42
15	45
16	47
17	51
18	53
19	57
20	59
21	62
22	65
23	67
24	71
25	73
26	77
27	79
28	83
29	85
30	89
31	92
32	95
33	98
34	101
35	104
36	107
37	110
38	113
39	116
40	119
41	123
42	125
43	129
44	132
45	135

[1, 2, 4, 9, 12, 14, 17, 19, 23, 26, 29, 33, 36, 39, 42, 45, 47, 51, 53, 57, 59, 62, 65, 67, 71, 73, 77, 79, 83, 85, 89, 92, 95, 98, 101, 104, 107, 110, 113, 116, 119, 123, 125, 129, 132, 135]

cp's OEIS Frontend

A022428 a(n) = c(n-1) + c(n-3) where c is the sequence of numbers not in a.

Table of values

List of values

n	a(n)
0	1
1	2
2	4
3	9
4	12
5	14
6	17
7	19
8	23
9	26
10	29
11	33
12	36
13	39
14	42
15	45
16	47
17	51
18	53
19	57
20	59
21	62
22	65
23	67
24	71
25	73
26	77
27	79
28	83
29	85
30	89
31	92
32	95
33	98
34	101
35	104
36	107
37	110
38	113
39	116
40	119
41	123
42	125
43	129
44	132
45	135

n	a(n)
0	1
1	2
2	4
3	9
4	12
5	14
6	17
7	19
8	23
9	26
10	29
11	33
12	36
13	39
14	42
15	45
16	47
17	51
18	53
19	57
20	59
21	62
22	65
23	67
24	71
25	73
26	77
27	79
28	83
29	85
30	89
31	92
32	95
33	98
34	101
35	104
36	107
37	110
38	113
39	116
40	119
41	123
42	125
43	129
44	132
45	135

n	a(n)
0	1
1	2
2	4
3	9
4	12
5	14
6	17
7	19
8	23
9	26
10	29
11	33
12	36
13	39
14	42
15	45
16	47
17	51
18	53
19	57
20	59
21	62
22	65
23	67
24	71
25	73
26	77
27	79
28	83
29	85
30	89
31	92
32	95
33	98
34	101
35	104
36	107
37	110
38	113
39	116
40	119
41	123
42	125
43	129
44	132
45	135