A335831 - cp's OEIS frontend

A335831 Numbers k with a record value of tau(tau(k)) (A010553), where tau(k) is the number of divisors of k (A000005).

n	a(n)
1	1
2	2
3	6
4	12
5	60
6	360
7	1260
8	2520
9	5040
10	55440
11	277200
12	720720
13	3603600
14	61261200
15	129729600
16	908107200
17	2205403200
18	15437822400
19	293318625600
20	3226504881600
21	6746328388800
22	74209612276800
23	195643523275200
24	1855240306920000
25	2152078756027200
26	27977023828353600

[1, 2, 6, 12, 60, 360, 1260, 2520, 5040, 55440, 277200, 720720, 3603600, 61261200, 129729600, 908107200, 2205403200, 15437822400, 293318625600, 3226504881600, 6746328388800, 74209612276800, 195643523275200, 1855240306920000, 2152078756027200, 27977023828353600]

cp's OEIS Frontend

A335831 Numbers k with a record value of tau(tau(k)) (A010553), where tau(k) is the number of divisors of k (A000005).

Table of values

List of values