A381724 - cp's OEIS frontend

A381724 a(n) = pos(M(n)), where M(n) is the n X n matrix with every term = 4, and pos(M(n)) is the positive part of the determinant of M(n); see A380661.

n	a(n)
1	4
2	16
3	192
4	3072
5	61440
6	1474560
7	41287680
8	1321205760
9	47563407360
10	1902536294400
11	83711596953600
12	4018156653772800
13	208944145996185600
14	11700872175786393600
15	702052330547183616000
16	44931349155019751424000
17	3055331742541343096832000

[4, 16, 192, 3072, 61440, 1474560, 41287680, 1321205760, 47563407360, 1902536294400, 83711596953600, 4018156653772800, 208944145996185600, 11700872175786393600, 702052330547183616000, 44931349155019751424000, 3055331742541343096832000]

cp's OEIS Frontend

A381724 a(n) = pos(M(n)), where M(n) is the n X n matrix with every term = 4, and pos(M(n)) is the positive part of the determinant of M(n); see A380661.

Table of values

List of values