A046573 - cp's OEIS frontend

A046573 First denominator and then numerator of the central elements of the 1/4-Pascal triangle (by row).

n	a(n)
1	1
2	1
3	4
4	1
5	2
6	5
7	2
8	19
9	1
10	35
11	2
12	259
13	1
14	483
15	1
16	1815
17	1
18	6864
19	2
20	52195
21	1
22	99671
23	1
24	382109
25	1
26	1469650
27	1
28	5668327
29	1
30	21915550
31	1
32	84913470
33	1
34	329624730
35	2
36	2563431075
37	1
38	4991324415
39	1
40	19463777025
41	1
42	75992317170
43	1
44	297026449005
45	1

[1, 1, 4, 1, 2, 5, 2, 19, 1, 35, 2, 259, 1, 483, 1, 1815, 1, 6864, 2, 52195, 1, 99671, 1, 382109, 1, 1469650, 1, 5668327, 1, 21915550, 1, 84913470, 1, 329624730, 2, 2563431075, 1, 4991324415, 1, 19463777025, 1, 75992317170, 1, 297026449005, 1]

cp's OEIS Frontend

A046573 First denominator and then numerator of the central elements of the 1/4-Pascal triangle (by row).

Table of values

List of values