A060238 - cp's OEIS frontend

A060238 a(n) = det(M) where M is an n X n matrix with M[i,j] = lcm(i,j).

n	a(n)
0	1
1	1
2	-2
3	12
4	-48
5	960
6	11520
7	-483840
8	3870720
9	-69672960
10	-2786918400
11	306561024000
12	7357464576000
13	-1147764473856000
14	-96412215803904000
15	-11569465896468480000
16	185111454343495680000
17	-50350315581430824960000
18	-1812611360931509698560000

[1, 1, -2, 12, -48, 960, 11520, -483840, 3870720, -69672960, -2786918400, 306561024000, 7357464576000, -1147764473856000, -96412215803904000, -11569465896468480000, 185111454343495680000, -50350315581430824960000, -1812611360931509698560000]

cp's OEIS Frontend

A060238 a(n) = det(M) where M is an n X n matrix with M[i,j] = lcm(i,j).

Table of values

List of values