A155100 - cp's OEIS frontend

A155100 Triangle read by rows: coefficients in polynomials P_n(u) arising from the expansion of D^(n-1) (tan x) in increasing powers of tan x for n>=1 and 1 for n=0.

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	0
7	2
8	0
9	2
10	2
11	0
12	8
13	0
14	6
15	0
16	16
17	0
18	40
19	0
20	24
21	16
22	0
23	136
24	0
25	240
26	0
27	120
28	0
29	272
30	0
31	1232
32	0
33	1680
34	0
35	720
36	272
37	0
38	3968
39	0
40	12096
41	0
42	13440
43	0
44	5040
45	0
46	7936
47	0
48	56320
49	0
50	129024
51	0
52	120960
53	0
54	40320
55	7936
56	0
57	176896
58	0
59	814080
60	0
61	1491840

[1, 0, 1, 1, 0, 1, 0, 2, 0, 2, 2, 0, 8, 0, 6, 0, 16, 0, 40, 0, 24, 16, 0, 136, 0, 240, 0, 120, 0, 272, 0, 1232, 0, 1680, 0, 720, 272, 0, 3968, 0, 12096, 0, 13440, 0, 5040, 0, 7936, 0, 56320, 0, 129024, 0, 120960, 0, 40320, 7936, 0, 176896, 0, 814080, 0, 1491840]

cp's OEIS Frontend

A155100 Triangle read by rows: coefficients in polynomials P_n(u) arising from the expansion of D^(n-1) (tan x) in increasing powers of tan x for n>=1 and 1 for n=0.

Table of values

List of values