A254614 - OEIS

A254614 as a simple table

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

[0,1,3,5,6,7,9,10,11,12,13,15,17,18,19,20,21,23, 24,25,27,29,30,31,33,34,35,36,37,39,40,41,43,45, 46,47,48,49,51,53,54,55,57,58,59,60,61,63,65,66, 67,68,69,71,72,73,75,77,78,79,80,81,83,85,86,87, 89]

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

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

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