A271647 - OEIS

A271647 as a simple table

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

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

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

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

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