A372930 - cp's OEIS frontend

A372930 a(n) = Sum_{1 <= x_1, x_2, x_3 <= n} gcd(x_1, x_2, x_3, n)^5.

n	a(n)
1	1
2	39
3	269
4	1304
5	3249
6	10491
7	17149
8	42176
9	66069
10	126711
11	162381
12	350776
13	373489
14	668811
15	873981
16	1353216
17	1424769
18	2576691
19	2482957
20	4236696
21	4613081
22	6332859
23	6448509
24	11345344
25	10168625
26	14566071
27	16073721
28	22362296
29	20535537
30	34085259
31	28658941
32	43331584

[1, 39, 269, 1304, 3249, 10491, 17149, 42176, 66069, 126711, 162381, 350776, 373489, 668811, 873981, 1353216, 1424769, 2576691, 2482957, 4236696, 4613081, 6332859, 6448509, 11345344, 10168625, 14566071, 16073721, 22362296, 20535537, 34085259, 28658941, 43331584]

cp's OEIS Frontend

A372930 a(n) = Sum_{1 <= x_1, x_2, x_3 <= n} gcd(x_1, x_2, x_3, n)^5.

Table of values

List of values