A046594 - cp's OEIS frontend

A046594 First denominator and then numerator of each element of the 1/4-Pascal triangle (by row), excluding 2's and 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	5
22	9
23	1
24	1
25	1
26	1
27	13
28	19
29	19
30	13
31	1
32	1
33	1
34	1
35	17
36	1
37	8
38	19
39	1
40	8
41	17
42	1
43	1
44	1
45	1
46	21
47	49
48	35
49	35
50	49
51	21
52	1
53	1
54	1
55	1
56	25
57	35
58	119
59	1
60	35
61	119
62	35
63	25
64	1
65	1
66	1
67	1
68	29
69	95
70	189
71	259
72	259
73	189
74	95
75	29
76	1

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 1, 1, 9, 5, 9, 1, 1, 1, 1, 13, 19, 19, 13, 1, 1, 1, 1, 17, 1, 8, 19, 1, 8, 17, 1, 1, 1, 1, 21, 49, 35, 35, 49, 21, 1, 1, 1, 1, 25, 35, 119, 1, 35, 119, 35, 25, 1, 1, 1, 1, 29, 95, 189, 259, 259, 189, 95, 29, 1]

cp's OEIS Frontend

A046594 First denominator and then numerator of each element of the 1/4-Pascal triangle (by row), excluding 2's and 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	5
22	9
23	1
24	1
25	1
26	1
27	13
28	19
29	19
30	13
31	1
32	1
33	1
34	1
35	17
36	1
37	8
38	19
39	1
40	8
41	17
42	1
43	1
44	1
45	1
46	21
47	49
48	35
49	35
50	49
51	21
52	1
53	1
54	1
55	1
56	25
57	35
58	119
59	1
60	35
61	119
62	35
63	25
64	1
65	1
66	1
67	1
68	29
69	95
70	189
71	259
72	259
73	189
74	95
75	29
76	1

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	5
22	9
23	1
24	1
25	1
26	1
27	13
28	19
29	19
30	13
31	1
32	1
33	1
34	1
35	17
36	1
37	8
38	19
39	1
40	8
41	17
42	1
43	1
44	1
45	1
46	21
47	49
48	35
49	35
50	49
51	21
52	1
53	1
54	1
55	1
56	25
57	35
58	119
59	1
60	35
61	119
62	35
63	25
64	1
65	1
66	1
67	1
68	29
69	95
70	189
71	259
72	259
73	189
74	95
75	29
76	1

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	5
22	9
23	1
24	1
25	1
26	1
27	13
28	19
29	19
30	13
31	1
32	1
33	1
34	1
35	17
36	1
37	8
38	19
39	1
40	8
41	17
42	1
43	1
44	1
45	1
46	21
47	49
48	35
49	35
50	49
51	21
52	1
53	1
54	1
55	1
56	25
57	35
58	119
59	1
60	35
61	119
62	35
63	25
64	1
65	1
66	1
67	1
68	29
69	95
70	189
71	259
72	259
73	189
74	95
75	29
76	1