A137023 Numbers k such that k and k^2 use only the digits 1, 3, 4, 5 and 9.

1, 3, 393, 115393, 399143, 141115393, 9545449143, 1191433399143, 3154543415393, 4399945449143, 5595919434143, 13943993399143, 39394341115393, 119143339434143, 139353311519143, 333933435515393, 591534913115393, 594941544449143, 599535915449143, 599995454415393, 954941544449143

Offset

1,2

Comments

Generated with DrScheme.

Links

Table of n, a(n) for n=1..21.

J. Wellons, Tables of Shared Digits [archived]

Example

591534913115393^2 = 349913553434435545444933544449.

Crossrefs

Sequence in context: A187942 A244670 A199146 * A203563 A181990 A198666

Adjacent sequences: A137020 A137021 A137022 * A137024 A137025 A137026

Keyword

base,nonn,changed

Author

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

Status

approved