A353452 - cp's OEIS frontend

A353452 a(n) is the determinant of the n X n symmetric matrix M(n) that is defined as M[i,j] = abs(i - j) if min(i, j) < max(i, j) <= 2*min(i, j), and otherwise 0.

n	a(n)
0	1
1	0
2	-1
3	0
4	1
5	-4
6	12
7	64
8	-172
9	-1348
10	3456
11	34240
12	-87084
13	370640
14	-872336
15	-22639616
16	52307088
17	-181323568
18	399580288
19	23627011200
20	-51305628400
21	-686160247552
22	1545932859328
23	68098264912128
24	-155370174372864
25	6326621032802304
26	-13829529077133312
27	-1087288396552040448

[1, 0, -1, 0, 1, -4, 12, 64, -172, -1348, 3456, 34240, -87084, 370640, -872336, -22639616, 52307088, -181323568, 399580288, 23627011200, -51305628400, -686160247552, 1545932859328, 68098264912128, -155370174372864, 6326621032802304, -13829529077133312, -1087288396552040448]

cp's OEIS Frontend

A353452 a(n) is the determinant of the n X n symmetric matrix M(n) that is defined as M[i,j] = abs(i - j) if min(i, j) < max(i, j) <= 2*min(i, j), and otherwise 0.

Table of values

List of values