A317500 - cp's OEIS frontend

A317500 Triangle read by rows: T(0,0) = 1; T(n,k) = T(n-1,k) + 2 * T(n-4,k-1) for k = 0..floor(n/4); T(n,k)=0 for n or k < 0.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	1
7	4
8	1
9	6
10	1
11	8
12	1
13	10
14	4
15	1
16	12
17	12
18	1
19	14
20	24
21	1
22	16
23	40
24	1
25	18
26	60
27	8
28	1
29	20
30	84
31	32
32	1
33	22
34	112
35	80
36	1
37	24
38	144
39	160
40	1
41	26
42	180
43	280
44	16
45	1
46	28
47	220
48	448
49	80
50	1
51	30
52	264
53	672
54	240
55	1
56	32
57	312
58	960
59	560
60	1
61	34
62	364
63	1320
64	1120
65	32

[1, 1, 1, 1, 1, 2, 1, 4, 1, 6, 1, 8, 1, 10, 4, 1, 12, 12, 1, 14, 24, 1, 16, 40, 1, 18, 60, 8, 1, 20, 84, 32, 1, 22, 112, 80, 1, 24, 144, 160, 1, 26, 180, 280, 16, 1, 28, 220, 448, 80, 1, 30, 264, 672, 240, 1, 32, 312, 960, 560, 1, 34, 364, 1320, 1120, 32]

cp's OEIS Frontend

A317500 Triangle read by rows: T(0,0) = 1; T(n,k) = T(n-1,k) + 2 * T(n-4,k-1) for k = 0..floor(n/4); T(n,k)=0 for n or k < 0.

Table of values

List of values