A031153 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A031153

Numbers k such that k^2 contains only digits {1,2,5}.

5

1, 5, 11, 15, 35, 39, 235, 335, 461, 715, 1235, 1585, 2261, 2285, 3335, 12335, 33335, 33989, 34965, 72285, 123335, 333335, 1101011, 1233335, 3333335, 11054965, 12333335, 14579285, 33333335, 105934485, 123333335, 333333335

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

OFFSET

1,2

LINKS

Zhao Hui Du, Table of n, a(n) for n = 1..113

Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences

CROSSREFS

Cf. A031151, A034905.

Sequence in context: A340131 A290199 A034905 * A136976 A136975 A136973

Adjacent sequences: A031150 A031151 A031152 * A031154 A031155 A031156

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

EXTENSIONS

Corrected and extended by Patrick De Geest, Mar 15 2000

STATUS

approved