A003988 - cp's OEIS frontend

A003988 Triangle with subscripts (1,1),(2,1),(1,2),(3,1),(2,2),(1,3), etc. in which entry (i,j) is [ i/j ].

n	a(n)
1	1
2	2
3	0
4	3
5	1
6	0
7	4
8	1
9	0
10	0
11	5
12	2
13	1
14	0
15	0
16	6
17	2
18	1
19	0
20	0
21	0
22	7
23	3
24	1
25	1
26	0
27	0
28	0
29	8
30	3
31	2
32	1
33	0
34	0
35	0
36	0
37	9
38	4
39	2
40	1
41	1
42	0
43	0
44	0
45	0
46	10
47	4
48	2
49	1
50	1
51	0
52	0
53	0
54	0
55	0
56	11
57	5
58	3
59	2
60	1
61	1
62	0
63	0
64	0
65	0
66	0
67	12
68	5
69	3
70	2
71	1
72	1
73	0
74	0
75	0
76	0
77	0
78	0
79	13
80	6
81	3
82	2
83	1
84	1
85	1
86	0
87	0
88	0
89	0
90	0
91	0
92	14
93	6
94	4
95	2
96	2
97	1
98	1
99	0
100	0
101	0
102	0

[1, 2, 0, 3, 1, 0, 4, 1, 0, 0, 5, 2, 1, 0, 0, 6, 2, 1, 0, 0, 0, 7, 3, 1, 1, 0, 0, 0, 8, 3, 2, 1, 0, 0, 0, 0, 9, 4, 2, 1, 1, 0, 0, 0, 0, 10, 4, 2, 1, 1, 0, 0, 0, 0, 0, 11, 5, 3, 2, 1, 1, 0, 0, 0, 0, 0, 12, 5, 3, 2, 1, 1, 0, 0, 0, 0, 0, 0, 13, 6, 3, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0, 14, 6, 4, 2, 2, 1, 1, 0, 0, 0, 0]

cp's OEIS Frontend

A003988 Triangle with subscripts (1,1),(2,1),(1,2),(3,1),(2,2),(1,3), etc. in which entry (i,j) is [ i/j ].

Table of values

List of values

n	a(n)
1	1
2	2
3	0
4	3
5	1
6	0
7	4
8	1
9	0
10	0
11	5
12	2
13	1
14	0
15	0
16	6
17	2
18	1
19	0
20	0
21	0
22	7
23	3
24	1
25	1
26	0
27	0
28	0
29	8
30	3
31	2
32	1
33	0
34	0
35	0
36	0
37	9
38	4
39	2
40	1
41	1
42	0
43	0
44	0
45	0
46	10
47	4
48	2
49	1
50	1
51	0
52	0
53	0
54	0
55	0
56	11
57	5
58	3
59	2
60	1
61	1
62	0
63	0
64	0
65	0
66	0
67	12
68	5
69	3
70	2
71	1
72	1
73	0
74	0
75	0
76	0
77	0
78	0
79	13
80	6
81	3
82	2
83	1
84	1
85	1
86	0
87	0
88	0
89	0
90	0
91	0
92	14
93	6
94	4
95	2
96	2
97	1
98	1
99	0
100	0
101	0
102	0

n	a(n)
1	1
2	2
3	0
4	3
5	1
6	0
7	4
8	1
9	0
10	0
11	5
12	2
13	1
14	0
15	0
16	6
17	2
18	1
19	0
20	0
21	0
22	7
23	3
24	1
25	1
26	0
27	0
28	0
29	8
30	3
31	2
32	1
33	0
34	0
35	0
36	0
37	9
38	4
39	2
40	1
41	1
42	0
43	0
44	0
45	0
46	10
47	4
48	2
49	1
50	1
51	0
52	0
53	0
54	0
55	0
56	11
57	5
58	3
59	2
60	1
61	1
62	0
63	0
64	0
65	0
66	0
67	12
68	5
69	3
70	2
71	1
72	1
73	0
74	0
75	0
76	0
77	0
78	0
79	13
80	6
81	3
82	2
83	1
84	1
85	1
86	0
87	0
88	0
89	0
90	0
91	0
92	14
93	6
94	4
95	2
96	2
97	1
98	1
99	0
100	0
101	0
102	0

n	a(n)
1	1
2	2
3	0
4	3
5	1
6	0
7	4
8	1
9	0
10	0
11	5
12	2
13	1
14	0
15	0
16	6
17	2
18	1
19	0
20	0
21	0
22	7
23	3
24	1
25	1
26	0
27	0
28	0
29	8
30	3
31	2
32	1
33	0
34	0
35	0
36	0
37	9
38	4
39	2
40	1
41	1
42	0
43	0
44	0
45	0
46	10
47	4
48	2
49	1
50	1
51	0
52	0
53	0
54	0
55	0
56	11
57	5
58	3
59	2
60	1
61	1
62	0
63	0
64	0
65	0
66	0
67	12
68	5
69	3
70	2
71	1
72	1
73	0
74	0
75	0
76	0
77	0
78	0
79	13
80	6
81	3
82	2
83	1
84	1
85	1
86	0
87	0
88	0
89	0
90	0
91	0
92	14
93	6
94	4
95	2
96	2
97	1
98	1
99	0
100	0
101	0
102	0