A046582 - cp's OEIS frontend

A046582 First denominator and then numerator of each element of the 1/4-Pascal triangle (by row), excluding 4's.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	5
15	5
16	1
17	1
18	1
19	1
20	9
21	2
22	5
23	9
24	1
25	1
26	1
27	1
28	13
29	19
30	19
31	13
32	1
33	1
34	1
35	1
36	17
37	1
38	8
39	2
40	19
41	1
42	8
43	17
44	1
45	1
46	1
47	1
48	21
49	49
50	2
51	35
52	2
53	35
54	49
55	21
56	1
57	1
58	1
59	1
60	25
61	2
62	35
63	119
64	1
65	35
66	119
67	2
68	35
69	25
70	1
71	1
72	1
73	1
74	29

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 1, 1, 9, 2, 5, 9, 1, 1, 1, 1, 13, 19, 19, 13, 1, 1, 1, 1, 17, 1, 8, 2, 19, 1, 8, 17, 1, 1, 1, 1, 21, 49, 2, 35, 2, 35, 49, 21, 1, 1, 1, 1, 25, 2, 35, 119, 1, 35, 119, 2, 35, 25, 1, 1, 1, 1, 29]

cp's OEIS Frontend

A046582 First denominator and then numerator of each element of the 1/4-Pascal triangle (by row), excluding 4's.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	5
15	5
16	1
17	1
18	1
19	1
20	9
21	2
22	5
23	9
24	1
25	1
26	1
27	1
28	13
29	19
30	19
31	13
32	1
33	1
34	1
35	1
36	17
37	1
38	8
39	2
40	19
41	1
42	8
43	17
44	1
45	1
46	1
47	1
48	21
49	49
50	2
51	35
52	2
53	35
54	49
55	21
56	1
57	1
58	1
59	1
60	25
61	2
62	35
63	119
64	1
65	35
66	119
67	2
68	35
69	25
70	1
71	1
72	1
73	1
74	29

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	5
15	5
16	1
17	1
18	1
19	1
20	9
21	2
22	5
23	9
24	1
25	1
26	1
27	1
28	13
29	19
30	19
31	13
32	1
33	1
34	1
35	1
36	17
37	1
38	8
39	2
40	19
41	1
42	8
43	17
44	1
45	1
46	1
47	1
48	21
49	49
50	2
51	35
52	2
53	35
54	49
55	21
56	1
57	1
58	1
59	1
60	25
61	2
62	35
63	119
64	1
65	35
66	119
67	2
68	35
69	25
70	1
71	1
72	1
73	1
74	29

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	1
13	1
14	5
15	5
16	1
17	1
18	1
19	1
20	9
21	2
22	5
23	9
24	1
25	1
26	1
27	1
28	13
29	19
30	19
31	13
32	1
33	1
34	1
35	1
36	17
37	1
38	8
39	2
40	19
41	1
42	8
43	17
44	1
45	1
46	1
47	1
48	21
49	49
50	2
51	35
52	2
53	35
54	49
55	21
56	1
57	1
58	1
59	1
60	25
61	2
62	35
63	119
64	1
65	35
66	119
67	2
68	35
69	25
70	1
71	1
72	1
73	1
74	29