A099514 - cp's OEIS frontend

A099514 Triangle, read by rows, of trinomial coefficients arranged so that there are n+1 terms in row n by setting T(n,k) equal to the coefficient of z^k in (1 + z + 2*z^2)^(n-[k/2]), for n>=k>=0, where [k/2] is the integer floor of k/2.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	1
7	3
8	5
9	4
10	1
11	4
12	9
13	13
14	4
15	1
16	5
17	14
18	28
19	18
20	12
21	1
22	6
23	20
24	50
25	49
26	56
27	8
28	1
29	7
30	27
31	80
32	105
33	161
34	56
35	32
36	1
37	8
38	35
39	119
40	195
41	366
42	210
43	200
44	16
45	1
46	9
47	44
48	168
49	329
50	721
51	581
52	732
53	160
54	80
55	1
56	10
57	54
58	228
59	518
60	1288
61	1337
62	2045
63	780
64	640
65	32
66	1
67	11
68	65
69	300
70	774
71	2142
72	2716
73	4824
74	2674
75	2884
76	432
77	192

[1, 1, 1, 1, 2, 2, 1, 3, 5, 4, 1, 4, 9, 13, 4, 1, 5, 14, 28, 18, 12, 1, 6, 20, 50, 49, 56, 8, 1, 7, 27, 80, 105, 161, 56, 32, 1, 8, 35, 119, 195, 366, 210, 200, 16, 1, 9, 44, 168, 329, 721, 581, 732, 160, 80, 1, 10, 54, 228, 518, 1288, 1337, 2045, 780, 640, 32, 1, 11, 65, 300, 774, 2142, 2716, 4824, 2674, 2884, 432, 192]

cp's OEIS Frontend

A099514 Triangle, read by rows, of trinomial coefficients arranged so that there are n+1 terms in row n by setting T(n,k) equal to the coefficient of z^k in (1 + z + 2*z^2)^(n-[k/2]), for n>=k>=0, where [k/2] is the integer floor of k/2.

Table of values

List of values