A242926 - cp's OEIS frontend

A242926 a(n) = denominator of B(0,n), where B(n,n) = 0, B(n-1,n) = 1/n and otherwise B(m,n) = B(m-1,n+1) - B(m-1,n).

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	4
12	1
13	7
14	15
15	8
16	1
17	18
18	1
19	10
20	21
21	11
22	1
23	24
24	5
25	13
26	9
27	14
28	1
29	30
30	1
31	16
32	11
33	17
34	35
35	12
36	1
37	19
38	39
39	20
40	1
41	42
42	1
43	22
44	9
45	23
46	1
47	48
48	7
49	25
50	17
51	26
52	1
53	54
54	55
55	28
56	19
57	29
58	1
59	20
60	1

[1, 1, 1, 2, 1, 6, 1, 4, 3, 5, 1, 4, 1, 7, 15, 8, 1, 18, 1, 10, 21, 11, 1, 24, 5, 13, 9, 14, 1, 30, 1, 16, 11, 17, 35, 12, 1, 19, 39, 20, 1, 42, 1, 22, 9, 23, 1, 48, 7, 25, 17, 26, 1, 54, 55, 28, 19, 29, 1, 20, 1]

cp's OEIS Frontend

A242926 a(n) = denominator of B(0,n), where B(n,n) = 0, B(n-1,n) = 1/n and otherwise B(m,n) = B(m-1,n+1) - B(m-1,n).

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	4
12	1
13	7
14	15
15	8
16	1
17	18
18	1
19	10
20	21
21	11
22	1
23	24
24	5
25	13
26	9
27	14
28	1
29	30
30	1
31	16
32	11
33	17
34	35
35	12
36	1
37	19
38	39
39	20
40	1
41	42
42	1
43	22
44	9
45	23
46	1
47	48
48	7
49	25
50	17
51	26
52	1
53	54
54	55
55	28
56	19
57	29
58	1
59	20
60	1

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	4
12	1
13	7
14	15
15	8
16	1
17	18
18	1
19	10
20	21
21	11
22	1
23	24
24	5
25	13
26	9
27	14
28	1
29	30
30	1
31	16
32	11
33	17
34	35
35	12
36	1
37	19
38	39
39	20
40	1
41	42
42	1
43	22
44	9
45	23
46	1
47	48
48	7
49	25
50	17
51	26
52	1
53	54
54	55
55	28
56	19
57	29
58	1
59	20
60	1

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	4
12	1
13	7
14	15
15	8
16	1
17	18
18	1
19	10
20	21
21	11
22	1
23	24
24	5
25	13
26	9
27	14
28	1
29	30
30	1
31	16
32	11
33	17
34	35
35	12
36	1
37	19
38	39
39	20
40	1
41	42
42	1
43	22
44	9
45	23
46	1
47	48
48	7
49	25
50	17
51	26
52	1
53	54
54	55
55	28
56	19
57	29
58	1
59	20
60	1