A274089 - OEIS

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A274089 as a simple table

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

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

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

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

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