A092365 - cp's OEIS frontend

A092365 Coefficient of X^2 in expansion of (1 + nX + nX^2)^n.

n	a(n)
1	1
2	8
3	36
4	112
5	275
6	576
7	1078
8	1856
9	2997
10	4600
11	6776
12	9648
13	13351
14	18032
15	23850
16	30976
17	39593
18	49896
19	62092
20	76400
21	93051
22	112288
23	134366
24	159552
25	188125
26	220376
27	256608
28	297136
29	342287
30	392400
31	447826
32	508928
33	576081
34	649672
35	730100
36	817776

[1, 8, 36, 112, 275, 576, 1078, 1856, 2997, 4600, 6776, 9648, 13351, 18032, 23850, 30976, 39593, 49896, 62092, 76400, 93051, 112288, 134366, 159552, 188125, 220376, 256608, 297136, 342287, 392400, 447826, 508928, 576081, 649672, 730100, 817776]

cp's OEIS Frontend

A092365 Coefficient of X^2 in expansion of (1 + nX + nX^2)^n.

Table of values

List of values

cp's OEIS Frontend

A092365 Coefficient of X^2 in expansion of (1 + n*X + n*X^2)^n.

Table of values

List of values

A092365 Coefficient of X^2 in expansion of (1 + nX + nX^2)^n.