A340501 - cp's OEIS frontend

A340501 Smallest square which when written in base b contains each digit exactly once, or -1 if no such square exists.

n	a(n)
2	-1
3	-1
4	225
5	-1
6	38025
7	314721
8	3111696
9	61058596
10	1026753849
11	31529329225
12	892067027049
13	-1
14	803752551280900
15	29501156485626049
16	1163446635475467225
17	-1
18	2200667320658951859841
19	104753558229986901966129
20	5272187100814113874556176
21	-1
22	15588378150732414428650569369

[-1, -1, 225, -1, 38025, 314721, 3111696, 61058596, 1026753849, 31529329225, 892067027049, -1, 803752551280900, 29501156485626049, 1163446635475467225, -1, 2200667320658951859841, 104753558229986901966129, 5272187100814113874556176, -1, 15588378150732414428650569369]

cp's OEIS Frontend

A340501 Smallest square which when written in base b contains each digit exactly once, or -1 if no such square exists.

Table of values

List of values