A300945 - cp's OEIS frontend

A300945 Rectangular array A(n, k) = hypergeom([-k, k + n/2 - 1], [1], -4) with row n >= 0 and k >= 0, read by ascending antidiagonals.

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	25
6	1
7	5
8	43
9	425
10	1
11	7
12	65
13	661
14	7025
15	1
16	9
17	91
18	965
19	10515
20	116625
21	1
22	11
23	121
24	1345
25	15105
26	171097
27	1951625
28	1
29	13
30	155
31	1809
32	20995
33	243525
34	2828101
35	32903225
36	1
37	15
38	193
39	2365
40	28401
41	337877
42	4001345
43	47284251
44	558265825

[1, 1, 1, 1, 3, 25, 1, 5, 43, 425, 1, 7, 65, 661, 7025, 1, 9, 91, 965, 10515, 116625, 1, 11, 121, 1345, 15105, 171097, 1951625, 1, 13, 155, 1809, 20995, 243525, 2828101, 32903225, 1, 15, 193, 2365, 28401, 337877, 4001345, 47284251, 558265825]

cp's OEIS Frontend

A300945 Rectangular array A(n, k) = hypergeom([-k, k + n/2 - 1], [1], -4) with row n >= 0 and k >= 0, read by ascending antidiagonals.

Table of values

List of values