A333301 - cp's OEIS frontend

A333301 a(1) = 1, a(2) = 2. For n>2, if a(n-1) is odd, a(n) = a(n-1) + a(n-2), and otherwise a(n) is the smallest missing number.

n	a(n)
1	1
2	2
3	3
4	5
5	8
6	4
7	6
8	7
9	13
10	20
11	9
12	29
13	38
14	10
15	11
16	21
17	32
18	12
19	14
20	15
21	29
22	44
23	16
24	17
25	33
26	50
27	18
28	19
29	37
30	56
31	22
32	23
33	45
34	68
35	24
36	25
37	49
38	74
39	26
40	27
41	53
42	80
43	28
44	30
45	31
46	61
47	92
48	34
49	35
50	69
51	104
52	36
53	39
54	75
55	114
56	40
57	41
58	81
59	122
60	42
61	43
62	85
63	128
64	46
65	47
66	93
67	140
68	48
69	51
70	99
71	150
72	52
73	54
74	55
75	109
76	164

[1, 2, 3, 5, 8, 4, 6, 7, 13, 20, 9, 29, 38, 10, 11, 21, 32, 12, 14, 15, 29, 44, 16, 17, 33, 50, 18, 19, 37, 56, 22, 23, 45, 68, 24, 25, 49, 74, 26, 27, 53, 80, 28, 30, 31, 61, 92, 34, 35, 69, 104, 36, 39, 75, 114, 40, 41, 81, 122, 42, 43, 85, 128, 46, 47, 93, 140, 48, 51, 99, 150, 52, 54, 55, 109, 164]

cp's OEIS Frontend

A333301 a(1) = 1, a(2) = 2. For n>2, if a(n-1) is odd, a(n) = a(n-1) + a(n-2), and otherwise a(n) is the smallest missing number.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	8
6	4
7	6
8	7
9	13
10	20
11	9
12	29
13	38
14	10
15	11
16	21
17	32
18	12
19	14
20	15
21	29
22	44
23	16
24	17
25	33
26	50
27	18
28	19
29	37
30	56
31	22
32	23
33	45
34	68
35	24
36	25
37	49
38	74
39	26
40	27
41	53
42	80
43	28
44	30
45	31
46	61
47	92
48	34
49	35
50	69
51	104
52	36
53	39
54	75
55	114
56	40
57	41
58	81
59	122
60	42
61	43
62	85
63	128
64	46
65	47
66	93
67	140
68	48
69	51
70	99
71	150
72	52
73	54
74	55
75	109
76	164

n	a(n)
1	1
2	2
3	3
4	5
5	8
6	4
7	6
8	7
9	13
10	20
11	9
12	29
13	38
14	10
15	11
16	21
17	32
18	12
19	14
20	15
21	29
22	44
23	16
24	17
25	33
26	50
27	18
28	19
29	37
30	56
31	22
32	23
33	45
34	68
35	24
36	25
37	49
38	74
39	26
40	27
41	53
42	80
43	28
44	30
45	31
46	61
47	92
48	34
49	35
50	69
51	104
52	36
53	39
54	75
55	114
56	40
57	41
58	81
59	122
60	42
61	43
62	85
63	128
64	46
65	47
66	93
67	140
68	48
69	51
70	99
71	150
72	52
73	54
74	55
75	109
76	164

n	a(n)
1	1
2	2
3	3
4	5
5	8
6	4
7	6
8	7
9	13
10	20
11	9
12	29
13	38
14	10
15	11
16	21
17	32
18	12
19	14
20	15
21	29
22	44
23	16
24	17
25	33
26	50
27	18
28	19
29	37
30	56
31	22
32	23
33	45
34	68
35	24
36	25
37	49
38	74
39	26
40	27
41	53
42	80
43	28
44	30
45	31
46	61
47	92
48	34
49	35
50	69
51	104
52	36
53	39
54	75
55	114
56	40
57	41
58	81
59	122
60	42
61	43
62	85
63	128
64	46
65	47
66	93
67	140
68	48
69	51
70	99
71	150
72	52
73	54
74	55
75	109
76	164