A058437 Numbers k such that k^2 contains only digits {0,4,6}, not ending with zero.

2, 8, 20992, 21602, 215408, 800037502, 21120134092, 25815899102, 80025400008, 8000254000008, 25815577558262, 254166490010002, 254243985975008, 683085646609592, 800002540000008, 80000025400000008, 635613598504629262, 2457776365832743262, 2542962918459579238

Offset

1,1

Links

Zhao Hui Du, Table of n, a(n) for n = 1..25

P. De Geest, Index to related sequences

Hisanori Mishima, Sporadic tridigital solutions

Crossrefs

Cf. A058438.

Sequence in context: A160814 A038582 A309860 * A185681 A046967 A007753

Adjacent sequences: A058434 A058435 A058436 * A058438 A058439 A058440

Keyword

nonn,base

Author

Patrick De Geest, Nov 15 2000

Extensions

a(16) and above from Zhao Hui Du, Mar 08 2024

Status

approved