A025771 - OEIS

A025771 as a simple table

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

[1,1,1,2,2,2,3,3,3,4,4,5,6,6,7,8,8,9,10,10,11,12, 13,14,15,16,17,18,19,20,21,22,23,25,26,27,29,30, 31,33,34,35,37,38,40,42,43,45,47,48,50,52,53,55, 57,59,61,63,65,67]

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

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

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