A204132 - cp's OEIS frontend

A204132 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j)=(2i-1 if i=j and 1 otherwise) for i>=1 and j>=1 (as in A204131).

n	a(n)
1	1
2	-1
3	2
4	-4
5	1
6	8
7	-20
8	9
9	-1
10	48
11	-136
12	80
13	-16
14	1
15	384
16	-1184
17	820
18	-220
19	25
20	-1
21	3840
22	-12608
23	9784
24	-3160
25	490
26	-36
27	1
28	46080
29	-158976
30	134400
31	-49504
32	9380
33	-952
34	49
35	-1
36	645120
37	-2317824
38	2097024
39	-853440
40	186704

[1, -1, 2, -4, 1, 8, -20, 9, -1, 48, -136, 80, -16, 1, 384, -1184, 820, -220, 25, -1, 3840, -12608, 9784, -3160, 490, -36, 1, 46080, -158976, 134400, -49504, 9380, -952, 49, -1, 645120, -2317824, 2097024, -853440, 186704]

cp's OEIS Frontend

A204132 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j)=(2i-1 if i=j and 1 otherwise) for i>=1 and j>=1 (as in A204131).

Table of values

List of values