A200756 - cp's OEIS frontend

A200756 Triangle T(n,k) = coefficient of x^n in expansion of ((1 -sqrt(1 - 4x - 4x^2))/2)^k.

n	a(n)
1	1
2	2
3	1
4	4
5	4
6	1
7	12
8	12
9	6
10	1
11	40
12	40
13	24
14	8
15	1
16	144
17	144
18	92
19	40
20	10
21	1
22	544
23	544
24	360
25	176
26	60
27	12
28	1
29	2128
30	2128
31	1440
32	752
33	300
34	84
35	14
36	1
37	8544
38	8544
39	5872
40	3200
41	1400
42	472
43	112
44	16
45	1
46	35008
47	35008
48	24336
49	13664
50	6352
51	2400
52	700
53	144
54	18
55	1

[1, 2, 1, 4, 4, 1, 12, 12, 6, 1, 40, 40, 24, 8, 1, 144, 144, 92, 40, 10, 1, 544, 544, 360, 176, 60, 12, 1, 2128, 2128, 1440, 752, 300, 84, 14, 1, 8544, 8544, 5872, 3200, 1400, 472, 112, 16, 1, 35008, 35008, 24336, 13664, 6352, 2400, 700, 144, 18, 1]

cp's OEIS Frontend

A200756 Triangle T(n,k) = coefficient of x^n in expansion of ((1 -sqrt(1 - 4x - 4x^2))/2)^k.

Table of values

List of values

cp's OEIS Frontend

A200756 Triangle T(n,k) = coefficient of x^n in expansion of ((1 -sqrt(1 - 4*x - 4*x^2))/2)^k.

Table of values

List of values

A200756 Triangle T(n,k) = coefficient of x^n in expansion of ((1 -sqrt(1 - 4x - 4x^2))/2)^k.