A093415 - cp's OEIS frontend

A093415 Triangle read by rows: a(n, k) is the denominator of (n + (n-1) + ... + (n-k+1))/(1 + 2 + ... + k), 0 < k <= n.

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

[1, 1, 1, 1, 3, 1, 1, 3, 2, 1, 1, 1, 1, 5, 1, 1, 3, 2, 5, 3, 1, 1, 3, 1, 5, 3, 7, 1, 1, 1, 2, 5, 1, 7, 4, 1, 1, 3, 1, 1, 3, 7, 2, 9, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 1, 1, 1, 1, 5, 1, 7, 1, 3, 5, 11, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 11, 6, 1, 1, 3, 1, 5, 3, 1, 2, 9, 5, 11, 3, 13, 1, 1, 1, 2, 1, 1, 7, 4, 3, 1, 11, 2]

cp's OEIS Frontend

A093415 Triangle read by rows: a(n, k) is the denominator of (n + (n-1) + ... + (n-k+1))/(1 + 2 + ... + k), 0 < k <= n.

Table of values

List of values

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

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

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