A058421 Numbers k such that k^2 contains only digits {0,1,8}, not ending with zero.
1, 9, 109, 901, 1009, 9001, 10009, 10401, 90001, 100009, 100901, 900001, 1000009, 1004001, 8954391, 9000001, 10000009, 10009001, 34351141, 90000001, 100000009, 100040001, 900000001, 1000000009, 1000090001, 3163554991, 9000000001, 10000000009, 10000400001
Offset: 1
Links
- Zhao Hui Du, Table of n, a(n) for n = 1..91
- Patrick De Geest, Index to related sequences
- Hisanori Mishima, Sporadic tridigital solutions
Crossrefs
Cf. A058422.
Extensions
Terms a(28) and above from Zhao Hui Du, Mar 07 2024