A158944 - cp's OEIS frontend

A158944 Triangle by columns: the natural numbers interleaved with zeros in every column: (1, 0, 2, 0, 3, 0, 4, ...)

n	a(n)
1	1
2	0
3	1
4	2
5	0
6	1
7	0
8	2
9	0
10	1
11	3
12	0
13	2
14	0
15	1
16	0
17	3
18	0
19	2
20	0
21	1
22	4
23	0
24	3
25	0
26	2
27	0
28	1
29	0
30	4
31	0
32	3
33	0
34	2
35	0
36	1
37	5
38	0
39	4
40	0
41	3
42	0
43	2
44	0
45	1
46	0
47	5
48	0
49	4
50	0
51	3
52	0
53	2
54	0
55	1
56	6
57	0
58	5
59	0
60	4
61	0
62	3
63	0
64	2
65	0
66	1
67	0
68	6
69	0
70	5
71	0
72	4
73	0
74	3
75	0
76	2
77	0
78	1

[1, 0, 1, 2, 0, 1, 0, 2, 0, 1, 3, 0, 2, 0, 1, 0, 3, 0, 2, 0, 1, 4, 0, 3, 0, 2, 0, 1, 0, 4, 0, 3, 0, 2, 0, 1, 5, 0, 4, 0, 3, 0, 2, 0, 1, 0, 5, 0, 4, 0, 3, 0, 2, 0, 1, 6, 0, 5, 0, 4, 0, 3, 0, 2, 0, 1, 0, 6, 0, 5, 0, 4, 0, 3, 0, 2, 0, 1]

cp's OEIS Frontend

A158944 Triangle by columns: the natural numbers interleaved with zeros in every column: (1, 0, 2, 0, 3, 0, 4, ...)

Table of values

List of values

n	a(n)
1	1
2	0
3	1
4	2
5	0
6	1
7	0
8	2
9	0
10	1
11	3
12	0
13	2
14	0
15	1
16	0
17	3
18	0
19	2
20	0
21	1
22	4
23	0
24	3
25	0
26	2
27	0
28	1
29	0
30	4
31	0
32	3
33	0
34	2
35	0
36	1
37	5
38	0
39	4
40	0
41	3
42	0
43	2
44	0
45	1
46	0
47	5
48	0
49	4
50	0
51	3
52	0
53	2
54	0
55	1
56	6
57	0
58	5
59	0
60	4
61	0
62	3
63	0
64	2
65	0
66	1
67	0
68	6
69	0
70	5
71	0
72	4
73	0
74	3
75	0
76	2
77	0
78	1

n	a(n)
1	1
2	0
3	1
4	2
5	0
6	1
7	0
8	2
9	0
10	1
11	3
12	0
13	2
14	0
15	1
16	0
17	3
18	0
19	2
20	0
21	1
22	4
23	0
24	3
25	0
26	2
27	0
28	1
29	0
30	4
31	0
32	3
33	0
34	2
35	0
36	1
37	5
38	0
39	4
40	0
41	3
42	0
43	2
44	0
45	1
46	0
47	5
48	0
49	4
50	0
51	3
52	0
53	2
54	0
55	1
56	6
57	0
58	5
59	0
60	4
61	0
62	3
63	0
64	2
65	0
66	1
67	0
68	6
69	0
70	5
71	0
72	4
73	0
74	3
75	0
76	2
77	0
78	1

n	a(n)
1	1
2	0
3	1
4	2
5	0
6	1
7	0
8	2
9	0
10	1
11	3
12	0
13	2
14	0
15	1
16	0
17	3
18	0
19	2
20	0
21	1
22	4
23	0
24	3
25	0
26	2
27	0
28	1
29	0
30	4
31	0
32	3
33	0
34	2
35	0
36	1
37	5
38	0
39	4
40	0
41	3
42	0
43	2
44	0
45	1
46	0
47	5
48	0
49	4
50	0
51	3
52	0
53	2
54	0
55	1
56	6
57	0
58	5
59	0
60	4
61	0
62	3
63	0
64	2
65	0
66	1
67	0
68	6
69	0
70	5
71	0
72	4
73	0
74	3
75	0
76	2
77	0
78	1