A166888 - cp's OEIS frontend

A166888 Triangle T(n,k), read by rows n>=0 with terms k=1..3^n, where row n lists the coefficients in the n-th iteration of x*(1+x)^2.

n	a(n)
0	1
1	1
2	2
3	1
4	1
5	4
6	10
7	18
8	23
9	22
10	15
11	6
12	1
13	1
14	6
15	27
16	102
17	333
18	960
19	2472
20	5748
21	12150
22	23388
23	40926
24	64872
25	92772
26	119216
27	137112
28	140526
29	127677
30	102150
31	71331
32	42954
33	21939
34	9288
35	3156
36	822
37	153
38	18
39	1
40	1
41	8
42	52
43	300
44	1578
45	7692
46	35094
47	150978

[1, 1, 2, 1, 1, 4, 10, 18, 23, 22, 15, 6, 1, 1, 6, 27, 102, 333, 960, 2472, 5748, 12150, 23388, 40926, 64872, 92772, 119216, 137112, 140526, 127677, 102150, 71331, 42954, 21939, 9288, 3156, 822, 153, 18, 1, 1, 8, 52, 300, 1578, 7692, 35094, 150978]

cp's OEIS Frontend

A166888 Triangle T(n,k), read by rows n>=0 with terms k=1..3^n, where row n lists the coefficients in the n-th iteration of x*(1+x)^2.

Table of values

List of values