A053908 - OEIS

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A053908

Numbers k such that k^2 contains only digits {1,6,8}.

2

1, 4, 9, 41, 109, 1291, 28604, 78541, 81619, 782104, 1054119, 3341881, 4345881, 25823791, 29439546, 129105041, 817851954, 931064546, 2486185454, 2609955204, 24862847104, 786680914454

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

OFFSET

1,2

LINKS

Zhao Hui Du, Table of n, a(n) for n = 1..27

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

CROSSREFS

Sequence in context: A013459 A041229 A042887 * A149165 A083859 A070761

Adjacent sequences: A053905 A053906 A053907 * A053909 A053910 A053911

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Mar 15 2000

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005

STATUS

approved