A117252 - cp's OEIS frontend

A117252 Triangle T, read by rows, where matrix power T^3 has powers of 3 in the secondary diagonal: [T^3](n+1,n) = 3^(n+1), with all 1's in the main diagonal and zeros elsewhere.

n	a(n)
0	1
1	1
2	1
3	-3
4	3
5	1
6	45
7	-27
8	9
9	1
10	-2430
11	1215
12	-243
13	27
14	1
15	433026
16	-196830
17	32805
18	-2187
19	81
20	1
21	-245525742
22	105225318
23	-15943230
24	885735
25	-19683
26	243
27	1
28	434685788658
29	-178988265918
30	25569752274
31	-1291401630
32	23914845
33	-177147
34	729
35	1

[1, 1, 1, -3, 3, 1, 45, -27, 9, 1, -2430, 1215, -243, 27, 1, 433026, -196830, 32805, -2187, 81, 1, -245525742, 105225318, -15943230, 885735, -19683, 243, 1, 434685788658, -178988265918, 25569752274, -1291401630, 23914845, -177147, 729, 1]

cp's OEIS Frontend

A117252 Triangle T, read by rows, where matrix power T^3 has powers of 3 in the secondary diagonal: [T^3](n+1,n) = 3^(n+1), with all 1's in the main diagonal and zeros elsewhere.

Table of values

List of values