A046585 - cp's OEIS frontend

A046585 Odd numbers in writing first denominator and then numerator of each element of the 1/4-Pascal triangle (by row).

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	19
38	1
39	17
40	1
41	1
42	1
43	1
44	21
45	49
46	35
47	35
48	49
49	21
50	1
51	1
52	1
53	1
54	25
55	35
56	119
57	1
58	35
59	119
60	35
61	25
62	1
63	1
64	1
65	1
66	29
67	95
68	189
69	259
70	259
71	189
72	95
73	29
74	1
75	1
76	1
77	1
78	33
79	1
80	31
81	1
82	71
83	1
84	259

[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, 19, 1, 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, 1, 1, 1, 33, 1, 31, 1, 71, 1, 259]

cp's OEIS Frontend

A046585 Odd numbers in writing first denominator and then numerator of each element of the 1/4-Pascal triangle (by row).

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	19
38	1
39	17
40	1
41	1
42	1
43	1
44	21
45	49
46	35
47	35
48	49
49	21
50	1
51	1
52	1
53	1
54	25
55	35
56	119
57	1
58	35
59	119
60	35
61	25
62	1
63	1
64	1
65	1
66	29
67	95
68	189
69	259
70	259
71	189
72	95
73	29
74	1
75	1
76	1
77	1
78	33
79	1
80	31
81	1
82	71
83	1
84	259

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	19
38	1
39	17
40	1
41	1
42	1
43	1
44	21
45	49
46	35
47	35
48	49
49	21
50	1
51	1
52	1
53	1
54	25
55	35
56	119
57	1
58	35
59	119
60	35
61	25
62	1
63	1
64	1
65	1
66	29
67	95
68	189
69	259
70	259
71	189
72	95
73	29
74	1
75	1
76	1
77	1
78	33
79	1
80	31
81	1
82	71
83	1
84	259

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	19
38	1
39	17
40	1
41	1
42	1
43	1
44	21
45	49
46	35
47	35
48	49
49	21
50	1
51	1
52	1
53	1
54	25
55	35
56	119
57	1
58	35
59	119
60	35
61	25
62	1
63	1
64	1
65	1
66	29
67	95
68	189
69	259
70	259
71	189
72	95
73	29
74	1
75	1
76	1
77	1
78	33
79	1
80	31
81	1
82	71
83	1
84	259