A110877 - cp's OEIS frontend

A110877 Triangle T(n,k), 0 <= k <= n, read by rows, defined by: T(0,0) = 1, T(n,k) = 0 if n T(n,0) = T(n-1,0) + T(n-1,1) and for k >= 1: T(n,k) = T(n-1,k-1) + x*T(n-1,k) + T(n-1,k+1) with x = 3.

n	a(n)
0	1
1	1
2	1
3	2
4	4
5	1
6	6
7	15
8	7
9	1
10	21
11	58
12	37
13	10
14	1
15	79
16	232
17	179
18	68
19	13
20	1
21	311
22	954
23	837
24	396
25	108
26	16
27	1
28	1265
29	4010
30	3861
31	2133
32	736
33	157
34	19
35	1
36	5275
37	17156
38	17726
39	10996
40	4498
41	1226
42	215
43	22
44	1
45	22431
46	74469
47	81330
48	55212
49	25716
50	8391
51	1893

[1, 1, 1, 2, 4, 1, 6, 15, 7, 1, 21, 58, 37, 10, 1, 79, 232, 179, 68, 13, 1, 311, 954, 837, 396, 108, 16, 1, 1265, 4010, 3861, 2133, 736, 157, 19, 1, 5275, 17156, 17726, 10996, 4498, 1226, 215, 22, 1, 22431, 74469, 81330, 55212, 25716, 8391, 1893]

cp's OEIS Frontend

A110877 Triangle T(n,k), 0 <= k <= n, read by rows, defined by: T(0,0) = 1, T(n,k) = 0 if n T(n,0) = T(n-1,0) + T(n-1,1) and for k >= 1: T(n,k) = T(n-1,k-1) + x*T(n-1,k) + T(n-1,k+1) with x = 3.

Table of values

List of values