A177375 - cp's OEIS frontend

A177375 Triangle t(n,k): the coefficient [x^k] of the series (1+x)^n + 2nx*(1+x)^(n-2), in row n, column k.

n	a(n)
0	1
1	1
2	3
3	1
4	6
5	1
6	1
7	9
8	9
9	1
10	1
11	12
12	22
13	12
14	1
15	1
16	15
17	40
18	40
19	15
20	1
21	1
22	18
23	63
24	92
25	63
26	18
27	1
28	1
29	21
30	91
31	175
32	175
33	91
34	21
35	1
36	1
37	24
38	124
39	296
40	390
41	296
42	124
43	24
44	1
45	1
46	27
47	162
48	462
49	756
50	756
51	462
52	162
53	27
54	1
55	1
56	30
57	205
58	680
59	1330
60	1652
61	1330
62	680
63	205
64	30
65	1

[1, 1, 3, 1, 6, 1, 1, 9, 9, 1, 1, 12, 22, 12, 1, 1, 15, 40, 40, 15, 1, 1, 18, 63, 92, 63, 18, 1, 1, 21, 91, 175, 175, 91, 21, 1, 1, 24, 124, 296, 390, 296, 124, 24, 1, 1, 27, 162, 462, 756, 756, 462, 162, 27, 1, 1, 30, 205, 680, 1330, 1652, 1330, 680, 205, 30, 1]

cp's OEIS Frontend

A177375 Triangle t(n,k): the coefficient [x^k] of the series (1+x)^n + 2nx*(1+x)^(n-2), in row n, column k.

Table of values

List of values

cp's OEIS Frontend

A177375 Triangle t(n,k): the coefficient [x^k] of the series (1+x)^n + 2*n*x*(1+x)^(n-2), in row n, column k.

Table of values

List of values

A177375 Triangle t(n,k): the coefficient [x^k] of the series (1+x)^n + 2nx*(1+x)^(n-2), in row n, column k.