A243507 - cp's OEIS frontend

A243507 Consider a decimal number, n, with k digits. n = d(k)10^(k-1) + d(k-1)10^(k-2) + … + d(2)*10 + d_(1). Sequence lists the numbers n that divide s = Sum_{i=1..k} d(i)^d(i).

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	63
11	64
12	93
13	377
14	643
15	699
16	760
17	2428
18	3435
19	13073
20	46864
21	184405
22	208858
23	1313290
24	2326990
25	2868720
26	2868741
27	18273988
28	25265859
29	33690905
30	87889176
31	194123725
32	589957694

[1, 2, 3, 4, 5, 6, 7, 8, 9, 63, 64, 93, 377, 643, 699, 760, 2428, 3435, 13073, 46864, 184405, 208858, 1313290, 2326990, 2868720, 2868741, 18273988, 25265859, 33690905, 87889176, 194123725, 589957694]

cp's OEIS Frontend

A243507 Consider a decimal number, n, with k digits. n = d(k)10^(k-1) + d(k-1)10^(k-2) + … + d(2)*10 + d_(1). Sequence lists the numbers n that divide s = Sum_{i=1..k} d(i)^d(i).

Table of values

List of values

cp's OEIS Frontend

A243507 Consider a decimal number, n, with k digits. n = d(k)*10^(k-1) + d(k-1)*10^(k-2) + … + d(2)*10 + d_(1). Sequence lists the numbers n that divide s = Sum_{i=1..k} d(i)^d(i).

Table of values

List of values

A243507 Consider a decimal number, n, with k digits. n = d(k)10^(k-1) + d(k-1)10^(k-2) + … + d(2)*10 + d_(1). Sequence lists the numbers n that divide s = Sum_{i=1..k} d(i)^d(i).