A117250 - cp's OEIS frontend

A117250 Triangle T, read by rows, where matrix power T^2 has powers of 2 in the secondary diagonal: [T^2](n+1,n) = 2^(n+1), with all 1's in the main diagonal and zeros elsewhere.

n	a(n)
0	1
1	1
2	1
3	-1
4	2
5	1
6	4
7	-4
8	4
9	1
10	-40
11	32
12	-16
13	8
14	1
15	896
16	-640
17	256
18	-64
19	16
20	1
21	-43008
22	28672
23	-10240
24	2048
25	-256
26	32
27	1
28	4325376
29	-2752512
30	917504
31	-163840
32	16384
33	-1024
34	64
35	1
36	-899678208
37	553648128
38	-176160768
39	29360128
40	-2621440
41	131072
42	-4096
43	128
44	1

[1, 1, 1, -1, 2, 1, 4, -4, 4, 1, -40, 32, -16, 8, 1, 896, -640, 256, -64, 16, 1, -43008, 28672, -10240, 2048, -256, 32, 1, 4325376, -2752512, 917504, -163840, 16384, -1024, 64, 1, -899678208, 553648128, -176160768, 29360128, -2621440, 131072, -4096, 128, 1]

cp's OEIS Frontend

A117250 Triangle T, read by rows, where matrix power T^2 has powers of 2 in the secondary diagonal: [T^2](n+1,n) = 2^(n+1), with all 1's in the main diagonal and zeros elsewhere.

Table of values

List of values