A317052 - cp's OEIS frontend

A317052 Triangle read by rows: T(0,0) = 1; T(n,k) = 9*T(n-1,k) + T(n-2,k-1) for k = 0..floor(n/2); T(n,k)=0 for n or k < 0.

n	a(n)
0	1
1	9
2	81
3	1
4	729
5	18
6	6561
7	243
8	1
9	59049
10	2916
11	27
12	531441
13	32805
14	486
15	1
16	4782969
17	354294
18	7290
19	36
20	43046721
21	3720087
22	98415
23	810
24	1
25	387420489
26	38263752
27	1240029
28	14580
29	45
30	3486784401
31	387420489
32	14880348
33	229635
34	1215
35	1
36	31381059609
37	3874204890
38	172186884
39	3306744
40	25515
41	54

[1, 9, 81, 1, 729, 18, 6561, 243, 1, 59049, 2916, 27, 531441, 32805, 486, 1, 4782969, 354294, 7290, 36, 43046721, 3720087, 98415, 810, 1, 387420489, 38263752, 1240029, 14580, 45, 3486784401, 387420489, 14880348, 229635, 1215, 1, 31381059609, 3874204890, 172186884, 3306744, 25515, 54]

cp's OEIS Frontend

A317052 Triangle read by rows: T(0,0) = 1; T(n,k) = 9*T(n-1,k) + T(n-2,k-1) for k = 0..floor(n/2); T(n,k)=0 for n or k < 0.

Table of values

List of values