A344194 - cp's OEIS frontend

A344194 a(n) = Sum_{k=1..n} tau(gcd(k,n))^gcd(k,n), where tau(n) is the number of divisors of n.

n	a(n)
1	1
2	5
3	10
4	87
5	36
6	4114
7	134
8	65629
9	19705
10	1048628
11	2058
12	2176786622
13	8204
14	268435614
15	1073741928
16	152587956347
17	131088
18	101559956696337
19	524306
20	3656158441111964
21	4398046511420
22	17592186046514
23	8388630
24	4722366482871822135514
25	847288609591
26	4503599627378748

[1, 5, 10, 87, 36, 4114, 134, 65629, 19705, 1048628, 2058, 2176786622, 8204, 268435614, 1073741928, 152587956347, 131088, 101559956696337, 524306, 3656158441111964, 4398046511420, 17592186046514, 8388630, 4722366482871822135514, 847288609591, 4503599627378748]

cp's OEIS Frontend

A344194 a(n) = Sum_{k=1..n} tau(gcd(k,n))^gcd(k,n), where tau(n) is the number of divisors of n.

Table of values

List of values