A136902 Numbers k such that k and k^2 use only the digits 0, 2, 4 and 6.

0, 2, 20, 200, 2000, 20000, 20602, 200000, 206020, 2000000, 2006002, 2060200, 20000000, 20060020, 20602000, 200000000, 200060002, 200600200, 206020000, 2000000000, 2000600020, 2006002000, 2060200000, 20000000000, 20000600002, 20006000200, 20060020000, 20602000000, 200000000000, 200006000020, 200060002000, 200600200000

Offset

1,2

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..52

J. Wellons, Tables of Shared Digits

Example

206020000000000^2 = 42444240400000000000000000000.

Crossrefs

Sequence in context: A303462 A085586 A322298 * A136884 A093136 A037519

Adjacent sequences: A136899 A136900 A136901 * A136903 A136904 A136905

Keyword

base,nonn

Author

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

Status

approved