A004443 - OEIS

A004443 as a simple table

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

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

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

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

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