A060841 - cp's OEIS frontend

A060841 Numerator of 1/det(M) where M is the n X n matrix with M[i,j] = 1/lcm(i,j).

n	a(n)
1	1
2	4
3	18
4	144
5	900
6	16200
7	132300
8	2116800
9	28576800
10	714420000
11	8644482000
12	311201352000
13	4382752374000
14	143169910884000
15	4026653743612500
16	128852919795600000
17	2327405863808025000
18	125679916645633350000

[1, 4, 18, 144, 900, 16200, 132300, 2116800, 28576800, 714420000, 8644482000, 311201352000, 4382752374000, 143169910884000, 4026653743612500, 128852919795600000, 2327405863808025000, 125679916645633350000]

cp's OEIS Frontend

A060841 Numerator of 1/det(M) where M is the n X n matrix with M[i,j] = 1/lcm(i,j).

Table of values

List of values