A046563 - cp's OEIS frontend

A046563 First numerator and then denominator of each element of the 1/4-Pascal triangle (by row). To get a 1/4-Pascal triangle, replace "2" in the third row of the Pascal triangle with "1/4" and calculate all other rows as in the Pascal triangle.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	4
11	1
12	1
13	1
14	1
15	5
16	4
17	5
18	4
19	1
20	1
21	1
22	1
23	9
24	4
25	5
26	2
27	9
28	4
29	1
30	1
31	1
32	1
33	13
34	4
35	19
36	4
37	19
38	4
39	13
40	4
41	1
42	1
43	1
44	1
45	17
46	4
47	8
48	1
49	19
50	2
51	8
52	1
53	17
54	4
55	1
56	1
57	1
58	1
59	21
60	4
61	49
62	4
63	35
64	2
65	35
66	2
67	49
68	4
69	21
70	4
71	1
72	1
73	1
74	1
75	25
76	4
77	35
78	2
79	119
80	4
81	35
82	1
83	119
84	4
85	35
86	2
87	25
88	4
89	1
90	1
91	1
92	1

[1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 5, 4, 5, 4, 1, 1, 1, 1, 9, 4, 5, 2, 9, 4, 1, 1, 1, 1, 13, 4, 19, 4, 19, 4, 13, 4, 1, 1, 1, 1, 17, 4, 8, 1, 19, 2, 8, 1, 17, 4, 1, 1, 1, 1, 21, 4, 49, 4, 35, 2, 35, 2, 49, 4, 21, 4, 1, 1, 1, 1, 25, 4, 35, 2, 119, 4, 35, 1, 119, 4, 35, 2, 25, 4, 1, 1, 1, 1]

cp's OEIS Frontend

A046563 First numerator and then denominator of each element of the 1/4-Pascal triangle (by row). To get a 1/4-Pascal triangle, replace "2" in the third row of the Pascal triangle with "1/4" and calculate all other rows as in the Pascal triangle.

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	4
11	1
12	1
13	1
14	1
15	5
16	4
17	5
18	4
19	1
20	1
21	1
22	1
23	9
24	4
25	5
26	2
27	9
28	4
29	1
30	1
31	1
32	1
33	13
34	4
35	19
36	4
37	19
38	4
39	13
40	4
41	1
42	1
43	1
44	1
45	17
46	4
47	8
48	1
49	19
50	2
51	8
52	1
53	17
54	4
55	1
56	1
57	1
58	1
59	21
60	4
61	49
62	4
63	35
64	2
65	35
66	2
67	49
68	4
69	21
70	4
71	1
72	1
73	1
74	1
75	25
76	4
77	35
78	2
79	119
80	4
81	35
82	1
83	119
84	4
85	35
86	2
87	25
88	4
89	1
90	1
91	1
92	1

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	4
11	1
12	1
13	1
14	1
15	5
16	4
17	5
18	4
19	1
20	1
21	1
22	1
23	9
24	4
25	5
26	2
27	9
28	4
29	1
30	1
31	1
32	1
33	13
34	4
35	19
36	4
37	19
38	4
39	13
40	4
41	1
42	1
43	1
44	1
45	17
46	4
47	8
48	1
49	19
50	2
51	8
52	1
53	17
54	4
55	1
56	1
57	1
58	1
59	21
60	4
61	49
62	4
63	35
64	2
65	35
66	2
67	49
68	4
69	21
70	4
71	1
72	1
73	1
74	1
75	25
76	4
77	35
78	2
79	119
80	4
81	35
82	1
83	119
84	4
85	35
86	2
87	25
88	4
89	1
90	1
91	1
92	1

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	4
11	1
12	1
13	1
14	1
15	5
16	4
17	5
18	4
19	1
20	1
21	1
22	1
23	9
24	4
25	5
26	2
27	9
28	4
29	1
30	1
31	1
32	1
33	13
34	4
35	19
36	4
37	19
38	4
39	13
40	4
41	1
42	1
43	1
44	1
45	17
46	4
47	8
48	1
49	19
50	2
51	8
52	1
53	17
54	4
55	1
56	1
57	1
58	1
59	21
60	4
61	49
62	4
63	35
64	2
65	35
66	2
67	49
68	4
69	21
70	4
71	1
72	1
73	1
74	1
75	25
76	4
77	35
78	2
79	119
80	4
81	35
82	1
83	119
84	4
85	35
86	2
87	25
88	4
89	1
90	1
91	1
92	1