A189733 - cp's OEIS frontend

A189733 Denominator of B(0,n) where B(n,n)=0, B(n-1,n) = (-1)^(n+1)/n, and B(m,n) = B(m+1,n-1) + B(m,n-1), n >= 0, m >= 0, is an array of fractions.

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	6
6	1
7	4
8	3
9	5
10	1
11	12
12	1
13	7
14	5
15	8
16	1
17	18
18	1
19	10
20	7
21	11
22	1
23	24
24	1
25	13
26	9
27	14
28	1
29	30
30	1
31	16
32	11
33	17
34	1
35	36
36	1
37	19
38	13
39	20
40	1
41	42
42	1
43	22
44	15
45	23
46	1
47	48
48	1
49	25
50	17
51	26
52	1
53	54
54	1
55	28
56	19
57	29
58	1
59	60
60	1
61	31
62	21
63	32
64	1
65	66
66	1
67	34
68	23
69	35
70	1
71	72
72	1
73	37
74	25
75	38
76	1
77	78
78	1
79	40
80	27

[1, 1, 1, 2, 1, 6, 1, 4, 3, 5, 1, 12, 1, 7, 5, 8, 1, 18, 1, 10, 7, 11, 1, 24, 1, 13, 9, 14, 1, 30, 1, 16, 11, 17, 1, 36, 1, 19, 13, 20, 1, 42, 1, 22, 15, 23, 1, 48, 1, 25, 17, 26, 1, 54, 1, 28, 19, 29, 1, 60, 1, 31, 21, 32, 1, 66, 1, 34, 23, 35, 1, 72, 1, 37, 25, 38, 1, 78, 1, 40, 27]

cp's OEIS Frontend

A189733 Denominator of B(0,n) where B(n,n)=0, B(n-1,n) = (-1)^(n+1)/n, and B(m,n) = B(m+1,n-1) + B(m,n-1), n >= 0, m >= 0, is an array of fractions.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	6
6	1
7	4
8	3
9	5
10	1
11	12
12	1
13	7
14	5
15	8
16	1
17	18
18	1
19	10
20	7
21	11
22	1
23	24
24	1
25	13
26	9
27	14
28	1
29	30
30	1
31	16
32	11
33	17
34	1
35	36
36	1
37	19
38	13
39	20
40	1
41	42
42	1
43	22
44	15
45	23
46	1
47	48
48	1
49	25
50	17
51	26
52	1
53	54
54	1
55	28
56	19
57	29
58	1
59	60
60	1
61	31
62	21
63	32
64	1
65	66
66	1
67	34
68	23
69	35
70	1
71	72
72	1
73	37
74	25
75	38
76	1
77	78
78	1
79	40
80	27

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	6
6	1
7	4
8	3
9	5
10	1
11	12
12	1
13	7
14	5
15	8
16	1
17	18
18	1
19	10
20	7
21	11
22	1
23	24
24	1
25	13
26	9
27	14
28	1
29	30
30	1
31	16
32	11
33	17
34	1
35	36
36	1
37	19
38	13
39	20
40	1
41	42
42	1
43	22
44	15
45	23
46	1
47	48
48	1
49	25
50	17
51	26
52	1
53	54
54	1
55	28
56	19
57	29
58	1
59	60
60	1
61	31
62	21
63	32
64	1
65	66
66	1
67	34
68	23
69	35
70	1
71	72
72	1
73	37
74	25
75	38
76	1
77	78
78	1
79	40
80	27

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	6
6	1
7	4
8	3
9	5
10	1
11	12
12	1
13	7
14	5
15	8
16	1
17	18
18	1
19	10
20	7
21	11
22	1
23	24
24	1
25	13
26	9
27	14
28	1
29	30
30	1
31	16
32	11
33	17
34	1
35	36
36	1
37	19
38	13
39	20
40	1
41	42
42	1
43	22
44	15
45	23
46	1
47	48
48	1
49	25
50	17
51	26
52	1
53	54
54	1
55	28
56	19
57	29
58	1
59	60
60	1
61	31
62	21
63	32
64	1
65	66
66	1
67	34
68	23
69	35
70	1
71	72
72	1
73	37
74	25
75	38
76	1
77	78
78	1
79	40
80	27