A198895 - cp's OEIS frontend

A198895 Triangle of coefficients arising in expansion of n-th derivative of tan(x) + sec(x).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	4
8	5
9	2
10	1
11	8
12	18
13	16
14	5
15	1
16	16
17	58
18	88
19	61
20	16
21	1
22	32
23	179
24	416
25	479
26	272
27	61
28	1
29	64
30	543
31	1824
32	3111
33	2880
34	1385
35	272
36	1
37	128
38	1636
39	7680
40	18270
41	24576
42	19028
43	7936
44	1385
45	1
46	256
47	4916
48	31616
49	101166
50	185856
51	206276

[1, 1, 1, 1, 2, 1, 1, 4, 5, 2, 1, 8, 18, 16, 5, 1, 16, 58, 88, 61, 16, 1, 32, 179, 416, 479, 272, 61, 1, 64, 543, 1824, 3111, 2880, 1385, 272, 1, 128, 1636, 7680, 18270, 24576, 19028, 7936, 1385, 1, 256, 4916, 31616, 101166, 185856, 206276]

cp's OEIS Frontend

A198895 Triangle of coefficients arising in expansion of n-th derivative of tan(x) + sec(x).

Table of values

List of values