A218220 - cp's OEIS frontend

A218220 Array a(n,m) read by antidiagonals where a(0,m)=a(1,m)=1 and a(n,m) = m*a(n-1,m)-a(n-2,m) for n>=2.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	-1
6	1
7	1
8	0
9	-1
10	1
11	1
12	1
13	-1
14	1
15	1
16	1
17	2
18	1
19	-1
20	1
21	1
22	1
23	3
24	5
25	1
26	0
27	-1
28	1
29	1
30	4
31	11
32	13
33	1
34	1
35	-1
36	1
37	1
38	5
39	19
40	41
41	34
42	1
43	1
44	1
45	1
46	1
47	6
48	29
49	91
50	153
51	89
52	1
53	0
54	1
55	1
56	1
57	7
58	41
59	169
60	436
61	571
62	233
63	1
64	-1
65	-1
66	1
67	1
68	8
69	55
70	281
71	985
72	2089
73	2131
74	610
75	1
76	-1
77	-1
78	1
79	1
80	9
81	71
82	433
83	1926
84	5741
85	10009
86	7953
87	1597
88	1
89	0
90	1
91	1
92	1
93	10
94	89
95	631
96	3409
97	13201
98	33461
99	47956
100	29681

[1, 1, 1, 1, 1, -1, 1, 1, 0, -1, 1, 1, 1, -1, 1, 1, 1, 2, 1, -1, 1, 1, 1, 3, 5, 1, 0, -1, 1, 1, 4, 11, 13, 1, 1, -1, 1, 1, 5, 19, 41, 34, 1, 1, 1, 1, 1, 6, 29, 91, 153, 89, 1, 0, 1, 1, 1, 7, 41, 169, 436, 571, 233, 1, -1, -1, 1, 1, 8, 55, 281, 985, 2089, 2131, 610, 1, -1, -1, 1, 1, 9, 71, 433, 1926, 5741, 10009, 7953, 1597, 1, 0, 1, 1, 1, 10, 89, 631, 3409, 13201, 33461, 47956, 29681]

cp's OEIS Frontend

A218220 Array a(n,m) read by antidiagonals where a(0,m)=a(1,m)=1 and a(n,m) = m*a(n-1,m)-a(n-2,m) for n>=2.

Table of values

List of values