A204182 - cp's OEIS frontend

A204182 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of (f(i,j)), where f(i,1)=f(1,j)=1, f(i,i)=2i-1; f(i,j)=0 otherwise; as in A204181.

n	a(n)
1	1
2	-1
3	2
4	-4
5	1
6	7
7	-21
8	9
9	-1
10	34
11	-146
12	83
13	-16
14	1
15	201
16	-1277
17	878
18	-226
19	25
20	-1
21	1266
22	-13504
23	10729
24	-3340
25	500
26	-36
27	1
28	6063
29	-167689
30	149971
31	-53679
32	9805
33	-967
34	49
35	-1
36	-44190
37	-2392326
38	2368995
39	-946036
40	199829

[1, -1, 2, -4, 1, 7, -21, 9, -1, 34, -146, 83, -16, 1, 201, -1277, 878, -226, 25, -1, 1266, -13504, 10729, -3340, 500, -36, 1, 6063, -167689, 149971, -53679, 9805, -967, 49, -1, -44190, -2392326, 2368995, -946036, 199829]

cp's OEIS Frontend

A204182 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of (f(i,j)), where f(i,1)=f(1,j)=1, f(i,i)=2i-1; f(i,j)=0 otherwise; as in A204181.

Table of values

List of values