A136855 Numbers k such that k and k^2 use only the digits 0, 1, 4, 5 and 6.

0, 1, 4, 10, 40, 100, 400, 1000, 1051, 4000, 4051, 6416, 6451, 6454, 10000, 10510, 40000, 40510, 64160, 64510, 64540, 100000, 100501, 100504, 105100, 400000, 400501, 405100, 641600, 645100, 645400, 664116, 664466, 664504, 1000000, 1005010, 1005040, 1051000, 1051454, 1054116, 4000000, 4001451, 4005010, 4051000, 4051551, 4056546, 4056551

Offset

1,3

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..638

Jonathan Wellons, Tables of Shared Digits

Example

405604056501616^2 = 164514650650566104560610611456.

Crossrefs

Cf. A000290.

Sequence in context: A100307 A238721 A077811 * A136860 A136859 A051479

Adjacent sequences: A136852 A136853 A136854 * A136856 A136857 A136858

Keyword

base,nonn

Author

Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008

Status

approved