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A031153 Numbers k such that k^2 contains only digits {1,2,5}. 4
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

Table of n, a(n) for n=1..32.

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

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Last modified January 22 18:20 EST 2022. Contains 350484 sequences. (Running on oeis4.)