A171948 - OEIS

A171948 as a simple table

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	7
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	21
19	22
20	23
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	33
29	34
30	35
31	37
32	38
33	39
34	41
35	42
36	43
37	45
38	46
39	47
40	48
41	49
42	50
43	51
44	53
45	54
46	55
47	57
48	58
49	59
50	61
51	62
52	63
53	65
54	66
55	67
56	69
57	70
58	71
59	73
60	74
61	75
62	77
63	78
64	79
65	80
66	81
67	82
68	83
69	85
70	86
71	87
72	89
73	90
74	91
75	93
76	94
77	95
78	96
79	97
80	98
81	99
82	101
83	102
84	103
85	105
86	106

[0,1,2,3,5,6,7,9,10,11,13,14,15,16,17,18,19,21,22, 23,25,26,27,29,30,31,32,33,34,35,37,38,39,41,42, 43,45,46,47,48,49,50,51,53,54,55,57,58,59,61,62, 63,65,66,67,69,70,71,73,74,75,77,78,79,80,81,82, 83,85,86,87,89,90,91,93,94,95,96,97,98,99,101,102, 103,105,106]

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	7
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	21
19	22
20	23
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	33
29	34
30	35
31	37
32	38
33	39
34	41
35	42
36	43
37	45
38	46
39	47
40	48
41	49
42	50
43	51
44	53
45	54
46	55
47	57
48	58
49	59
50	61
51	62
52	63
53	65
54	66
55	67
56	69
57	70
58	71
59	73
60	74
61	75
62	77
63	78
64	79
65	80
66	81
67	82
68	83
69	85
70	86
71	87
72	89
73	90
74	91
75	93
76	94
77	95
78	96
79	97
80	98
81	99
82	101
83	102
84	103
85	105
86	106

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	7
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	21
19	22
20	23
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	33
29	34
30	35
31	37
32	38
33	39
34	41
35	42
36	43
37	45
38	46
39	47
40	48
41	49
42	50
43	51
44	53
45	54
46	55
47	57
48	58
49	59
50	61
51	62
52	63
53	65
54	66
55	67
56	69
57	70
58	71
59	73
60	74
61	75
62	77
63	78
64	79
65	80
66	81
67	82
68	83
69	85
70	86
71	87
72	89
73	90
74	91
75	93
76	94
77	95
78	96
79	97
80	98
81	99
82	101
83	102
84	103
85	105
86	106

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	6
7	7
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	21
19	22
20	23
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	33
29	34
30	35
31	37
32	38
33	39
34	41
35	42
36	43
37	45
38	46
39	47
40	48
41	49
42	50
43	51
44	53
45	54
46	55
47	57
48	58
49	59
50	61
51	62
52	63
53	65
54	66
55	67
56	69
57	70
58	71
59	73
60	74
61	75
62	77
63	78
64	79
65	80
66	81
67	82
68	83
69	85
70	86
71	87
72	89
73	90
74	91
75	93
76	94
77	95
78	96
79	97
80	98
81	99
82	101
83	102
84	103
85	105
86	106