A210770 - cp's OEIS frontend

A210770 a(1) = 1, a(2) = 2; for n > 1, a(2n+2) = smallest number not yet seen, a(2n+1) = a(2n) + a(2n+2).

n	a(n)
1	1
2	2
3	5
4	3
5	7
6	4
7	10
8	6
9	14
10	8
11	17
12	9
13	20
14	11
15	23
16	12
17	25
18	13
19	28
20	15
21	31
22	16
23	34
24	18
25	37
26	19
27	40
28	21
29	43
30	22
31	46
32	24
33	50
34	26
35	53
36	27
37	56
38	29
39	59
40	30
41	62
42	32
43	65
44	33
45	68
46	35
47	71
48	36
49	74
50	38
51	77
52	39
53	80
54	41
55	83
56	42
57	86
58	44
59	89
60	45
61	92
62	47
63	95
64	48
65	97
66	49
67	100

[1, 2, 5, 3, 7, 4, 10, 6, 14, 8, 17, 9, 20, 11, 23, 12, 25, 13, 28, 15, 31, 16, 34, 18, 37, 19, 40, 21, 43, 22, 46, 24, 50, 26, 53, 27, 56, 29, 59, 30, 62, 32, 65, 33, 68, 35, 71, 36, 74, 38, 77, 39, 80, 41, 83, 42, 86, 44, 89, 45, 92, 47, 95, 48, 97, 49, 100]

cp's OEIS Frontend

A210770 a(1) = 1, a(2) = 2; for n > 1, a(2n+2) = smallest number not yet seen, a(2n+1) = a(2n) + a(2n+2).

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	3
5	7
6	4
7	10
8	6
9	14
10	8
11	17
12	9
13	20
14	11
15	23
16	12
17	25
18	13
19	28
20	15
21	31
22	16
23	34
24	18
25	37
26	19
27	40
28	21
29	43
30	22
31	46
32	24
33	50
34	26
35	53
36	27
37	56
38	29
39	59
40	30
41	62
42	32
43	65
44	33
45	68
46	35
47	71
48	36
49	74
50	38
51	77
52	39
53	80
54	41
55	83
56	42
57	86
58	44
59	89
60	45
61	92
62	47
63	95
64	48
65	97
66	49
67	100

n	a(n)
1	1
2	2
3	5
4	3
5	7
6	4
7	10
8	6
9	14
10	8
11	17
12	9
13	20
14	11
15	23
16	12
17	25
18	13
19	28
20	15
21	31
22	16
23	34
24	18
25	37
26	19
27	40
28	21
29	43
30	22
31	46
32	24
33	50
34	26
35	53
36	27
37	56
38	29
39	59
40	30
41	62
42	32
43	65
44	33
45	68
46	35
47	71
48	36
49	74
50	38
51	77
52	39
53	80
54	41
55	83
56	42
57	86
58	44
59	89
60	45
61	92
62	47
63	95
64	48
65	97
66	49
67	100

cp's OEIS Frontend

A210770 a(1) = 1, a(2) = 2; for n > 1, a(2*n+2) = smallest number not yet seen, a(2*n+1) = a(2*n) + a(2*n+2).

Table of values

List of values

A210770 a(1) = 1, a(2) = 2; for n > 1, a(2n+2) = smallest number not yet seen, a(2n+1) = a(2n) + a(2n+2).

n	a(n)
1	1
2	2
3	5
4	3
5	7
6	4
7	10
8	6
9	14
10	8
11	17
12	9
13	20
14	11
15	23
16	12
17	25
18	13
19	28
20	15
21	31
22	16
23	34
24	18
25	37
26	19
27	40
28	21
29	43
30	22
31	46
32	24
33	50
34	26
35	53
36	27
37	56
38	29
39	59
40	30
41	62
42	32
43	65
44	33
45	68
46	35
47	71
48	36
49	74
50	38
51	77
52	39
53	80
54	41
55	83
56	42
57	86
58	44
59	89
60	45
61	92
62	47
63	95
64	48
65	97
66	49
67	100