A204117 - cp's OEIS frontend

A204117 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j) = gcd(2^i-1, 2^j-1) (A204116).

n	a(n)
1	1
2	-1
3	2
4	-4
5	1
6	12
7	-28
8	11
9	-1
10	144
11	-360
12	182
13	-26
14	1
15	4320
16	-11088
17	5940
18	-984
19	57
20	-1
21	233280
22	-616032
23	348768
24	-64728
25	4506
26	-120
27	1
28	29393280
29	-78086592
30	44775936
31	-8554608
32	636444
33	-19740
34	247
35	-1
36	7054387200

[1, -1, 2, -4, 1, 12, -28, 11, -1, 144, -360, 182, -26, 1, 4320, -11088, 5940, -984, 57, -1, 233280, -616032, 348768, -64728, 4506, -120, 1, 29393280, -78086592, 44775936, -8554608, 636444, -19740, 247, -1, 7054387200]

cp's OEIS Frontend

A204117 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j) = gcd(2^i-1, 2^j-1) (A204116).

Table of values

List of values