A294153 - cp's OEIS frontend

A294153 Numbers k = a * b, such that k' = a' * b' where k', a' and b' are the arithmetic derivatives of k, a and b.

n	a(n)
1	0
2	1
3	256
4	512
5	1152
6	1728
7	1920
8	3072
9	3456
10	7776
11	11664
12	12800
13	12960
14	20736
15	23328
16	52488
17	72000
18	78732
19	81920
20	86400
21	87480
22	100352
23	110208
24	124800
25	139968
26	153216
27	157464
28	200000
29	219520
30	263424
31	294912
32	321024
33	336000
34	354294
35	400000
36	486000
37	486720
38	531441

[0, 1, 256, 512, 1152, 1728, 1920, 3072, 3456, 7776, 11664, 12800, 12960, 20736, 23328, 52488, 72000, 78732, 81920, 86400, 87480, 100352, 110208, 124800, 139968, 153216, 157464, 200000, 219520, 263424, 294912, 321024, 336000, 354294, 400000, 486000, 486720, 531441]

cp's OEIS Frontend

A294153 Numbers k = a * b, such that k' = a' * b' where k', a' and b' are the arithmetic derivatives of k, a and b.

Table of values

List of values