A112461 - cp's OEIS frontend

A112461 Absolute value of coefficient of term [x^(n-5)] in characteristic polynomial of maximum matrix A of size n X n, where n >= 5. Maximum matrix A(i,j) is MAX(i,j), where indices i and j run from 1 to n.

n	a(n)
5	5
6	59
7	374
8	1694
9	6149
10	19019
11	52052
12	129272
13	296582
14	636922
15	1293292
16	2502604
17	4644094
18	8306914
19	14382544
20	24188824
21	39633715
22	63428365
23	99360690
24	152642490
25	230345115
26	341940885
27	499969860
28	720854160
29	1025884860
30	1442409540
31	2005251864
32	2758398104

[5, 59, 374, 1694, 6149, 19019, 52052, 129272, 296582, 636922, 1293292, 2502604, 4644094, 8306914, 14382544, 24188824, 39633715, 63428365, 99360690, 152642490, 230345115, 341940885, 499969860, 720854160, 1025884860, 1442409540, 2005251864, 2758398104]

cp's OEIS Frontend

A112461 Absolute value of coefficient of term [x^(n-5)] in characteristic polynomial of maximum matrix A of size n X n, where n >= 5. Maximum matrix A(i,j) is MAX(i,j), where indices i and j run from 1 to n.

Table of values

List of values