A000574 - cp's OEIS frontend

A000574 Coefficient of x^5 in expansion of (1 + x + x^2)^n.

n	a(n)
3	3
4	16
5	51
6	126
7	266
8	504
9	882
10	1452
11	2277
12	3432
13	5005
14	7098
15	9828
16	13328
17	17748
18	23256
19	30039
20	38304
21	48279
22	60214
23	74382
24	91080
25	110630
26	133380
27	159705
28	190008
29	224721
30	264306
31	309256
32	360096
33	417384
34	481712
35	553707
36	634032
37	723387
38	822510

[3, 16, 51, 126, 266, 504, 882, 1452, 2277, 3432, 5005, 7098, 9828, 13328, 17748, 23256, 30039, 38304, 48279, 60214, 74382, 91080, 110630, 133380, 159705, 190008, 224721, 264306, 309256, 360096, 417384, 481712, 553707, 634032, 723387, 822510]

cp's OEIS Frontend

A000574 Coefficient of x^5 in expansion of (1 + x + x^2)^n.

Table of values

List of values