A121845 - OEIS

A121845 as a simple table

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

[1,3,4,5,2,3,4,5,7,8,9,10,11,6,7,12,13,14,16,17, 18,19,15,16,17,18,19,21,22,23,24,25,26,27,20,21, 22,23,24,25,26,27,29,30,31,32,33,34,35,36,37,28, 29,30,31,32,33,34,35,36,37,39,40,41,42,43,44,45, 46,47,48,49,38]

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

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

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