A003321 - cp's OEIS frontend

A003321 Smallest n-th order perfect digital invariant or PDI: smallest number > 1 equal to sum of n-th powers of its digits, or 0 if no such number exists.

n	a(n)
1	2
2	0
3	153
4	1634
5	4150
6	548834
7	1741725
8	24678050
9	146511208
10	4679307774
11	32164049650
12	0
13	564240140138
14	28116440335967
15	0
16	4338281769391370
17	233411150132317
18	0
19	1517841543307505039
20	63105425988599693916

[2, 0, 153, 1634, 4150, 548834, 1741725, 24678050, 146511208, 4679307774, 32164049650, 0, 564240140138, 28116440335967, 0, 4338281769391370, 233411150132317, 0, 1517841543307505039, 63105425988599693916]

cp's OEIS Frontend

A003321 Smallest n-th order perfect digital invariant or PDI: smallest number > 1 equal to sum of n-th powers of its digits, or 0 if no such number exists.

Table of values

List of values