A126075 - cp's OEIS frontend

A126075 Triangle T(n,k), 0 <= k <= n, read by rows, defined by: T(0,0)=1, T(n,k)=0 if k < 0 or if k > n, T(n,0) = 2*T(n-1,0) + T(n-1,1), T(n,k) = T(n-1,k-1) + T(n-1,k+1) for k >= 1.

n	a(n)
0	1
1	2
2	1
3	5
4	2
5	1
6	12
7	6
8	2
9	1
10	30
11	14
12	7
13	2
14	1
15	74
16	37
17	16
18	8
19	2
20	1
21	185
22	90
23	45
24	18
25	9
26	2
27	1
28	460
29	230
30	108
31	54
32	20
33	10
34	2
35	1
36	1150
37	568
38	284
39	128
40	64
41	22
42	11
43	2
44	1
45	2868
46	1434
47	696
48	348
49	150
50	75
51	24
52	12
53	2
54	1

[1, 2, 1, 5, 2, 1, 12, 6, 2, 1, 30, 14, 7, 2, 1, 74, 37, 16, 8, 2, 1, 185, 90, 45, 18, 9, 2, 1, 460, 230, 108, 54, 20, 10, 2, 1, 1150, 568, 284, 128, 64, 22, 11, 2, 1, 2868, 1434, 696, 348, 150, 75, 24, 12, 2, 1]

cp's OEIS Frontend

A126075 Triangle T(n,k), 0 <= k <= n, read by rows, defined by: T(0,0)=1, T(n,k)=0 if k < 0 or if k > n, T(n,0) = 2*T(n-1,0) + T(n-1,1), T(n,k) = T(n-1,k-1) + T(n-1,k+1) for k >= 1.

Table of values

List of values