A127080 - cp's OEIS frontend

A127080 Infinite square array read by antidiagonals: Q(m, 0) = 1, Q(m, 1) = 1; Q(m, 2k) = (m - 2k + 1)Q(m+1, 2k-1) - (2k-1)Q(m+2,2k-2), mQ(m, 2k+1) = (m - 2k)Q(m+1, 2k) - 2k(m+1)*Q(m+2, 2k-1).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	-2
6	1
7	1
8	-1
9	-5
10	1
11	1
12	0
13	-4
14	12
15	1
16	1
17	1
18	-3
19	3
20	43
21	1
22	1
23	2
24	-2
25	-4
26	28
27	-120
28	1
29	1
30	3
31	-1
32	-9
33	15
34	-15
35	-531
36	1
37	1
38	4
39	0
40	-12
41	4
42	48
43	-288
44	1680
45	1
46	1
47	5
48	1
49	-13
50	-5
51	75
52	-105
53	105
54	8601
55	1
56	1
57	6
58	2
59	-12
60	-12
61	72
62	24
63	-624
64	3984
65	-30240
66	1
67	1
68	7
69	3
70	-9
71	-17
72	45
73	105
74	-735
75	945
76	-945
77	-172965

[1, 1, 1, 1, 1, -2, 1, 1, -1, -5, 1, 1, 0, -4, 12, 1, 1, 1, -3, 3, 43, 1, 1, 2, -2, -4, 28, -120, 1, 1, 3, -1, -9, 15, -15, -531, 1, 1, 4, 0, -12, 4, 48, -288, 1680, 1, 1, 5, 1, -13, -5, 75, -105, 105, 8601, 1, 1, 6, 2, -12, -12, 72, 24, -624, 3984, -30240, 1, 1, 7, 3, -9, -17, 45, 105, -735, 945, -945, -172965]

cp's OEIS Frontend

A127080 Infinite square array read by antidiagonals: Q(m, 0) = 1, Q(m, 1) = 1; Q(m, 2k) = (m - 2k + 1)Q(m+1, 2k-1) - (2k-1)Q(m+2,2k-2), mQ(m, 2k+1) = (m - 2k)Q(m+1, 2k) - 2k(m+1)*Q(m+2, 2k-1).

Table of values

List of values

cp's OEIS Frontend

A127080 Infinite square array read by antidiagonals: Q(m, 0) = 1, Q(m, 1) = 1; Q(m, 2k) = (m - 2k + 1)*Q(m+1, 2k-1) - (2k-1)*Q(m+2,2k-2), m*Q(m, 2k+1) = (m - 2k)*Q(m+1, 2k) - 2k(m+1)*Q(m+2, 2k-1).

Table of values

List of values

A127080 Infinite square array read by antidiagonals: Q(m, 0) = 1, Q(m, 1) = 1; Q(m, 2k) = (m - 2k + 1)Q(m+1, 2k-1) - (2k-1)Q(m+2,2k-2), mQ(m, 2k+1) = (m - 2k)Q(m+1, 2k) - 2k(m+1)*Q(m+2, 2k-1).