A137072 Numbers k such that k and k^2 use only the digits 2, 3, 4, 6 and 8.

2, 6, 8, 22, 62, 68, 262, 482, 622, 662, 668, 4832, 4844, 6662, 6668, 26238, 48628, 66662, 66668, 483368, 666662, 666668, 828482, 828628, 2623628, 2886838, 2888482, 4833668, 4882262, 6232438, 6232442, 6232844, 6666662, 6666668, 6832442, 28848368, 28884838, 28886482, 62324832, 66248368, 66666662, 66666668, 288833628, 484382438

Offset

1,1

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..222

J. Wellons, Tables of Shared Digits [archived]

Example

262348362386482^2 = 68826663246868883434336336324.

Crossrefs

Sequence in context: A045654 A081672 A332348 * A153802 A217019 A240644

Adjacent sequences: A137069 A137070 A137071 * A137073 A137074 A137075

Keyword

base,nonn

Author

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

Status

approved