A272867 - cp's OEIS frontend

A272867 Triangle read by rows, T(n,k) = GegenbauerC(m,-n,-2) where m = k if k else 2*n-k, for n>=0 and 0<=k<=2n.

n	a(n)
0	1
1	1
2	4
3	1
4	1
5	8
6	18
7	8
8	1
9	1
10	12
11	51
12	88
13	51
14	12
15	1
16	1
17	16
18	100
19	304
20	454
21	304
22	100
23	16
24	1
25	1
26	20
27	165
28	720
29	1770
30	2424
31	1770
32	720
33	165
34	20
35	1
36	1
37	24
38	246
39	1400
40	4815
41	10224
42	13236
43	10224
44	4815
45	1400
46	246
47	24
48	1

[1, 1, 4, 1, 1, 8, 18, 8, 1, 1, 12, 51, 88, 51, 12, 1, 1, 16, 100, 304, 454, 304, 100, 16, 1, 1, 20, 165, 720, 1770, 2424, 1770, 720, 165, 20, 1, 1, 24, 246, 1400, 4815, 10224, 13236, 10224, 4815, 1400, 246, 24, 1]

cp's OEIS Frontend

A272867 Triangle read by rows, T(n,k) = GegenbauerC(m,-n,-2) where m = k if k else 2*n-k, for n>=0 and 0<=k<=2n.

Table of values

List of values