A046225 - cp's OEIS frontend

A046225 First numerator and then denominator of elements to right of central elements of 1/2-Pascal triangle.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	2
7	1
8	1
9	5
10	2
11	1
12	1
13	11
14	2
15	7
16	2
17	1
18	1
19	9
20	1
21	9
22	2
23	1
24	1
25	20
26	1
27	27
28	2
29	11
30	2
31	1
32	1
33	67
34	2
35	19
36	1
37	13
38	2
39	1
40	1
41	147
42	2
43	105
44	2
45	51
46	2
47	15
48	2
49	1
50	1
51	126
52	1
53	78
54	1
55	33
56	1
57	17
58	2
59	1
60	1
61	273
62	1
63	204
64	1
65	111
66	1
67	83
68	2
69	19
70	2
71	1
72	1
73	477
74	1
75	315
76	1

[1, 1, 1, 1, 3, 2, 1, 1, 5, 2, 1, 1, 11, 2, 7, 2, 1, 1, 9, 1, 9, 2, 1, 1, 20, 1, 27, 2, 11, 2, 1, 1, 67, 2, 19, 1, 13, 2, 1, 1, 147, 2, 105, 2, 51, 2, 15, 2, 1, 1, 126, 1, 78, 1, 33, 1, 17, 2, 1, 1, 273, 1, 204, 1, 111, 1, 83, 2, 19, 2, 1, 1, 477, 1, 315, 1]

cp's OEIS Frontend

A046225 First numerator and then denominator of elements to right of central elements of 1/2-Pascal triangle.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	2
7	1
8	1
9	5
10	2
11	1
12	1
13	11
14	2
15	7
16	2
17	1
18	1
19	9
20	1
21	9
22	2
23	1
24	1
25	20
26	1
27	27
28	2
29	11
30	2
31	1
32	1
33	67
34	2
35	19
36	1
37	13
38	2
39	1
40	1
41	147
42	2
43	105
44	2
45	51
46	2
47	15
48	2
49	1
50	1
51	126
52	1
53	78
54	1
55	33
56	1
57	17
58	2
59	1
60	1
61	273
62	1
63	204
64	1
65	111
66	1
67	83
68	2
69	19
70	2
71	1
72	1
73	477
74	1
75	315
76	1

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	2
7	1
8	1
9	5
10	2
11	1
12	1
13	11
14	2
15	7
16	2
17	1
18	1
19	9
20	1
21	9
22	2
23	1
24	1
25	20
26	1
27	27
28	2
29	11
30	2
31	1
32	1
33	67
34	2
35	19
36	1
37	13
38	2
39	1
40	1
41	147
42	2
43	105
44	2
45	51
46	2
47	15
48	2
49	1
50	1
51	126
52	1
53	78
54	1
55	33
56	1
57	17
58	2
59	1
60	1
61	273
62	1
63	204
64	1
65	111
66	1
67	83
68	2
69	19
70	2
71	1
72	1
73	477
74	1
75	315
76	1

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	2
7	1
8	1
9	5
10	2
11	1
12	1
13	11
14	2
15	7
16	2
17	1
18	1
19	9
20	1
21	9
22	2
23	1
24	1
25	20
26	1
27	27
28	2
29	11
30	2
31	1
32	1
33	67
34	2
35	19
36	1
37	13
38	2
39	1
40	1
41	147
42	2
43	105
44	2
45	51
46	2
47	15
48	2
49	1
50	1
51	126
52	1
53	78
54	1
55	33
56	1
57	17
58	2
59	1
60	1
61	273
62	1
63	204
64	1
65	111
66	1
67	83
68	2
69	19
70	2
71	1
72	1
73	477
74	1
75	315
76	1