A031177 - OEIS

A031177 as a simple table

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	8
7	9
8	11
9	12
10	14
11	15
12	16
13	17
14	18
15	20
16	21
17	22
18	24
19	25
20	26
21	27
22	29
23	30
24	33
25	34
26	35
27	36
28	37
29	38
30	39
31	40
32	41
33	42
34	43
35	45
36	46
37	47
38	48
39	50
40	51
41	52
42	53
43	54
44	55
45	56
46	57
47	58
48	59
49	60
50	61
51	62
52	63
53	64
54	65
55	66
56	67
57	69
58	71
59	72
60	73
61	74
62	75
63	76
64	77
65	78
66	80
67	81
68	83

[2,3,4,5,6,8,9,11,12,14,15,16,17,18,20,21,22,24, 25,26,27,29,30,33,34,35,36,37,38,39,40,41,42,43, 45,46,47,48,50,51,52,53,54,55,56,57,58,59,60,61, 62,63,64,65,66,67,69,71,72,73,74,75,76,77,78,80, 81,83]

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	8
7	9
8	11
9	12
10	14
11	15
12	16
13	17
14	18
15	20
16	21
17	22
18	24
19	25
20	26
21	27
22	29
23	30
24	33
25	34
26	35
27	36
28	37
29	38
30	39
31	40
32	41
33	42
34	43
35	45
36	46
37	47
38	48
39	50
40	51
41	52
42	53
43	54
44	55
45	56
46	57
47	58
48	59
49	60
50	61
51	62
52	63
53	64
54	65
55	66
56	67
57	69
58	71
59	72
60	73
61	74
62	75
63	76
64	77
65	78
66	80
67	81
68	83

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	8
7	9
8	11
9	12
10	14
11	15
12	16
13	17
14	18
15	20
16	21
17	22
18	24
19	25
20	26
21	27
22	29
23	30
24	33
25	34
26	35
27	36
28	37
29	38
30	39
31	40
32	41
33	42
34	43
35	45
36	46
37	47
38	48
39	50
40	51
41	52
42	53
43	54
44	55
45	56
46	57
47	58
48	59
49	60
50	61
51	62
52	63
53	64
54	65
55	66
56	67
57	69
58	71
59	72
60	73
61	74
62	75
63	76
64	77
65	78
66	80
67	81
68	83

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	8
7	9
8	11
9	12
10	14
11	15
12	16
13	17
14	18
15	20
16	21
17	22
18	24
19	25
20	26
21	27
22	29
23	30
24	33
25	34
26	35
27	36
28	37
29	38
30	39
31	40
32	41
33	42
34	43
35	45
36	46
37	47
38	48
39	50
40	51
41	52
42	53
43	54
44	55
45	56
46	57
47	58
48	59
49	60
50	61
51	62
52	63
53	64
54	65
55	66
56	67
57	69
58	71
59	72
60	73
61	74
62	75
63	76
64	77
65	78
66	80
67	81
68	83