A329819 - cp's OEIS frontend

A329819 Triangular array, read by rows: T(n,k) = [(xyz)^k] (-1 + (1 + x + 1/x)(1 + y + 1/y)(1 + z + 1/z))^n for -n <= k <= n.

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	6
6	26
7	6
8	1
9	1
10	24
11	195
12	264
13	195
14	24
15	1
16	1
17	60
18	898
19	3276
20	5646
21	3276
22	898
23	60
24	1
25	1
26	120
27	3065
28	22260
29	72730
30	101520
31	72730
32	22260
33	3065
34	120
35	1
36	1
37	210
38	8526
39	105690
40	581475
41	1510860
42	2103740
43	1510860
44	581475
45	105690
46	8526
47	210
48	1

[1, 1, 0, 1, 1, 6, 26, 6, 1, 1, 24, 195, 264, 195, 24, 1, 1, 60, 898, 3276, 5646, 3276, 898, 60, 1, 1, 120, 3065, 22260, 72730, 101520, 72730, 22260, 3065, 120, 1, 1, 210, 8526, 105690, 581475, 1510860, 2103740, 1510860, 581475, 105690, 8526, 210, 1]

cp's OEIS Frontend

A329819 Triangular array, read by rows: T(n,k) = [(xyz)^k] (-1 + (1 + x + 1/x)(1 + y + 1/y)(1 + z + 1/z))^n for -n <= k <= n.

Table of values

List of values

cp's OEIS Frontend

A329819 Triangular array, read by rows: T(n,k) = [(x*y*z)^k] (-1 + (1 + x + 1/x)*(1 + y + 1/y)*(1 + z + 1/z))^n for -n <= k <= n.

Table of values

List of values

A329819 Triangular array, read by rows: T(n,k) = [(xyz)^k] (-1 + (1 + x + 1/x)(1 + y + 1/y)(1 + z + 1/z))^n for -n <= k <= n.