A172381 - cp's OEIS frontend

A172381 Triangle whose inverse has production matrix with general term (-1)^(n-k+1)*C(k+1, n-k+1).

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	1
6	5
7	10
8	6
9	1
10	14
11	36
12	31
13	10
14	1
15	42
16	137
17	156
18	75
19	15
20	1
21	132
22	544
23	787
24	510
25	155
26	21
27	1
28	429
29	2235
30	4017
31	3331
32	1380
33	287
34	28
35	1
36	1430
37	9445
38	20809
39	21405
40	11411
41	3255
42	490
43	36
44	1
45	4862
46	40876
47	109486
48	136921
49	90665
50	33390
51	6916
52	786
53	45
54	1
55	16796

[1, 1, 1, 2, 3, 1, 5, 10, 6, 1, 14, 36, 31, 10, 1, 42, 137, 156, 75, 15, 1, 132, 544, 787, 510, 155, 21, 1, 429, 2235, 4017, 3331, 1380, 287, 28, 1, 1430, 9445, 20809, 21405, 11411, 3255, 490, 36, 1, 4862, 40876, 109486, 136921, 90665, 33390, 6916, 786, 45, 1, 16796]

cp's OEIS Frontend

A172381 Triangle whose inverse has production matrix with general term (-1)^(n-k+1)*C(k+1, n-k+1).

Table of values

List of values