A346926 - cp's OEIS frontend

A346926 a(n) is the smallest positive integer whose square starts and ends with exactly n identical digits, and a(n) = 0 when there is no such integer.

n	a(n)
1	1
2	88
3	10538
4	235700
5	0
6	57735000
7	0
8	14907120000
9	0
10	235702260400000
11	0
12	7453559925000000
13	0
14	105409255338950000000
15	0
16	10540925533894600000000
17	0
18	14907119849998598000000000
19	0
20	74535599249992989880000000000
21	0
22	210818510677891955466600000000000
23	0

[1, 88, 10538, 235700, 0, 57735000, 0, 14907120000, 0, 235702260400000, 0, 7453559925000000, 0, 105409255338950000000, 0, 10540925533894600000000, 0, 14907119849998598000000000, 0, 74535599249992989880000000000, 0, 210818510677891955466600000000000, 0]

cp's OEIS Frontend

A346926 a(n) is the smallest positive integer whose square starts and ends with exactly n identical digits, and a(n) = 0 when there is no such integer.

Table of values

List of values