A086142 - OEIS

A086142 as a simple table

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

[0,1,2,3,5,6,8,8,9,11,11,13,13,14,14,15,16,16,17, 18,18,19,19,20,20,21,21,21,22,22,23,23,24,24,25, 25,25,25,26,26,26,27,27,27,27,28,28,29,29,29,29, 29,30,30,30,31,31,31,31,31,31,32,32,32,33,33,33, 33,34,34,34,34]

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

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

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