A137089 - OEIS

A137089

Numbers k such that k and k^2 use only the digits 2, 3, 6, 7 and 9.

3, 6, 26, 27, 63, 277, 963, 7923, 27923, 62637, 79327, 263937, 269777, 626637, 962637, 962963, 969223, 996363, 2639937, 2696923, 2696973, 2779736, 7932637, 9996363, 9996963, 26396363, 27639236, 62633676, 79326376, 79332637, 269673376, 277979736, 632239937, 793332637, 796223736, 799766677, 799979327, 962693736, 962932637

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Generated with DrScheme.

LINKS

J. Wellons, Table of n, a(n) for n = 1..160

J. Wellons, Tables of Shared Digits [archived]

EXAMPLE

276293272932363^2 = 76337972667677232792772763769.

CROSSREFS

Sequence in context: A074432 A212650 A297572 * A197470 A148664 A148665

Adjacent sequences: A137086 A137087 A137088 * A137090 A137091 A137092

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved