A330967 - cp's OEIS frontend

A330967 a(n) is the determinant of the matrix with elements gcd(i,j) for 2 <= i,j <= n.

n	a(n)
2	2
3	5
4	10
5	44
6	104
7	656
8	2624
9	15744
10	67584
11	694272
12	2777088
13	34062336
14	213221376
15	1758855168
16	14070841344
17	228530847744
18	1371185086464
19	25007480635392
20	200059845083136
21	2447683608379392
22	25040421692375040
23	556525133318062080
24	4452201066544496640
25	89044021330889932800

[2, 5, 10, 44, 104, 656, 2624, 15744, 67584, 694272, 2777088, 34062336, 213221376, 1758855168, 14070841344, 228530847744, 1371185086464, 25007480635392, 200059845083136, 2447683608379392, 25040421692375040, 556525133318062080, 4452201066544496640, 89044021330889932800]

cp's OEIS Frontend

A330967 a(n) is the determinant of the matrix with elements gcd(i,j) for 2 <= i,j <= n.

Table of values

List of values