A204144 - cp's OEIS frontend

A204144 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j)=max(ceiling(i/j),ceiling(j/i)) (as in A204143).

n	a(n)
1	1
2	-1
3	-3
4	-2
5	1
6	8
7	14
8	3
9	-1
10	-12
11	-42
12	-35
13	-4
14	1
15	19
16	95
17	145
18	73
19	5
20	-1
21	-20
22	-140
23	-338
24	-336
25	-125
26	-6
27	1
28	16
29	184
30	665
31	1037
32	735
33	205
34	7
35	-1
36	-16
37	-212
38	-981
39	-2140
40	-2381
41	-1320
42	-303
43	-8
44	1
45	12
46	200
47	1209
48	3581
49	5727
50	5021

[1, -1, -3, -2, 1, 8, 14, 3, -1, -12, -42, -35, -4, 1, 19, 95, 145, 73, 5, -1, -20, -140, -338, -336, -125, -6, 1, 16, 184, 665, 1037, 735, 205, 7, -1, -16, -212, -981, -2140, -2381, -1320, -303, -8, 1, 12, 200, 1209, 3581, 5727, 5021]

cp's OEIS Frontend

A204144 Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j)=max(ceiling(i/j),ceiling(j/i)) (as in A204143).

Table of values

List of values