A002251 - OEIS

A002251 as a simple table

n	a(n)
0	0
1	2
2	1
3	5
4	7
5	3
6	10
7	4
8	13
9	15
10	6
11	18
12	20
13	8
14	23
15	9
16	26
17	28
18	11
19	31
20	12
21	34
22	36
23	14
24	39
25	41
26	16
27	44
28	17
29	47
30	49
31	19
32	52
33	54
34	21
35	57
36	22
37	60
38	62
39	24
40	65
41	25
42	68
43	70
44	27
45	73
46	75
47	29
48	78
49	30
50	81
51	83
52	32
53	86
54	33
55	89
56	91
57	35
58	94
59	96
60	37
61	99
62	38
63	102
64	104
65	40
66	107
67	109

[0,2,1,5,7,3,10,4,13,15,6,18,20,8,23,9,26,28,11, 31,12,34,36,14,39,41,16,44,17,47,49,19,52,54,21, 57,22,60,62,24,65,25,68,70,27,73,75,29,78,30,81, 83,32,86,33,89,91,35,94,96,37,99,38,102,104,40, 107,109]

n	a(n)
0	0
1	2
2	1
3	5
4	7
5	3
6	10
7	4
8	13
9	15
10	6
11	18
12	20
13	8
14	23
15	9
16	26
17	28
18	11
19	31
20	12
21	34
22	36
23	14
24	39
25	41
26	16
27	44
28	17
29	47
30	49
31	19
32	52
33	54
34	21
35	57
36	22
37	60
38	62
39	24
40	65
41	25
42	68
43	70
44	27
45	73
46	75
47	29
48	78
49	30
50	81
51	83
52	32
53	86
54	33
55	89
56	91
57	35
58	94
59	96
60	37
61	99
62	38
63	102
64	104
65	40
66	107
67	109

n	a(n)
0	0
1	2
2	1
3	5
4	7
5	3
6	10
7	4
8	13
9	15
10	6
11	18
12	20
13	8
14	23
15	9
16	26
17	28
18	11
19	31
20	12
21	34
22	36
23	14
24	39
25	41
26	16
27	44
28	17
29	47
30	49
31	19
32	52
33	54
34	21
35	57
36	22
37	60
38	62
39	24
40	65
41	25
42	68
43	70
44	27
45	73
46	75
47	29
48	78
49	30
50	81
51	83
52	32
53	86
54	33
55	89
56	91
57	35
58	94
59	96
60	37
61	99
62	38
63	102
64	104
65	40
66	107
67	109

n	a(n)
0	0
1	2
2	1
3	5
4	7
5	3
6	10
7	4
8	13
9	15
10	6
11	18
12	20
13	8
14	23
15	9
16	26
17	28
18	11
19	31
20	12
21	34
22	36
23	14
24	39
25	41
26	16
27	44
28	17
29	47
30	49
31	19
32	52
33	54
34	21
35	57
36	22
37	60
38	62
39	24
40	65
41	25
42	68
43	70
44	27
45	73
46	75
47	29
48	78
49	30
50	81
51	83
52	32
53	86
54	33
55	89
56	91
57	35
58	94
59	96
60	37
61	99
62	38
63	102
64	104
65	40
66	107
67	109