A271439 - OEIS

A271439 as a simple table

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

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

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

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

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