A258138 - cp's OEIS frontend

A258138 Smallest m, such that there are exactly n solutions of the equation (m+k)' = m' + k', where 1 <= k <= 2*m and x' = A003415(x), the arithmetic derivative of x.

n	a(n)
1	1
2	2
3	14
4	70
5	166
6	350
7	1050
8	2002
9	1870
10	4730
11	5170
12	9350
13	15106
14	29050
15	45318
16	65450
17	25850
18	139590
19	75530
20	129250
21	180950
22	226590
23	383350
24	341530
25	377650
26	551650
27	697950
28	439450
29	1127610
30	1489950
31	1004850
32	1654950

[1, 2, 14, 70, 166, 350, 1050, 2002, 1870, 4730, 5170, 9350, 15106, 29050, 45318, 65450, 25850, 139590, 75530, 129250, 180950, 226590, 383350, 341530, 377650, 551650, 697950, 439450, 1127610, 1489950, 1004850, 1654950]

cp's OEIS Frontend

A258138 Smallest m, such that there are exactly n solutions of the equation (m+k)' = m' + k', where 1 <= k <= 2*m and x' = A003415(x), the arithmetic derivative of x.

Table of values

List of values