A043272 - OEIS

A043272 as a simple table

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	2
15	4
16	6
17	8
18	10
19	12
20	14
21	16
22	18
23	20
24	22
25	24
26	2
27	3
28	4
29	5
30	6
31	7
32	8
33	9
34	10
35	11
36	12
37	13
38	14
39	4
40	5
41	6
42	7
43	8
44	9
45	10
46	11
47	12
48	13
49	14
50	15
51	16
52	6
53	7
54	8
55	9
56	10
57	11
58	12
59	13
60	14
61	15
62	16
63	17
64	18
65	8
66	9
67	10
68	11
69	12
70	13
71	14
72	15

[0,1,2,3,4,5,6,7,8,9,10,11,12,2,4,6,8,10,12,14,16, 18,20,22,24,2,3,4,5,6,7,8,9,10,11,12,13,14,4,5,6, 7,8,9,10,11,12,13,14,15,16,6,7,8,9,10,11,12,13,14, 15,16,17,18,8,9,10,11,12,13,14,15]

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	2
15	4
16	6
17	8
18	10
19	12
20	14
21	16
22	18
23	20
24	22
25	24
26	2
27	3
28	4
29	5
30	6
31	7
32	8
33	9
34	10
35	11
36	12
37	13
38	14
39	4
40	5
41	6
42	7
43	8
44	9
45	10
46	11
47	12
48	13
49	14
50	15
51	16
52	6
53	7
54	8
55	9
56	10
57	11
58	12
59	13
60	14
61	15
62	16
63	17
64	18
65	8
66	9
67	10
68	11
69	12
70	13
71	14
72	15

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	2
15	4
16	6
17	8
18	10
19	12
20	14
21	16
22	18
23	20
24	22
25	24
26	2
27	3
28	4
29	5
30	6
31	7
32	8
33	9
34	10
35	11
36	12
37	13
38	14
39	4
40	5
41	6
42	7
43	8
44	9
45	10
46	11
47	12
48	13
49	14
50	15
51	16
52	6
53	7
54	8
55	9
56	10
57	11
58	12
59	13
60	14
61	15
62	16
63	17
64	18
65	8
66	9
67	10
68	11
69	12
70	13
71	14
72	15

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	2
15	4
16	6
17	8
18	10
19	12
20	14
21	16
22	18
23	20
24	22
25	24
26	2
27	3
28	4
29	5
30	6
31	7
32	8
33	9
34	10
35	11
36	12
37	13
38	14
39	4
40	5
41	6
42	7
43	8
44	9
45	10
46	11
47	12
48	13
49	14
50	15
51	16
52	6
53	7
54	8
55	9
56	10
57	11
58	12
59	13
60	14
61	15
62	16
63	17
64	18
65	8
66	9
67	10
68	11
69	12
70	13
71	14
72	15