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A053900 Numbers k such that k^2 contains only digits {1,4,8}. 1
1, 2, 9, 12, 21, 22, 29, 38, 109, 122, 221, 1191, 20359, 12017441, 64352012, 69362229, 105741122, 1347014779, 10715008859, 664190348029, 940313186572, 4263966676478, 34479242283029, 1055656895701022, 2968363385585478 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..25.

Author?, Source(txt)

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

H. Mishima Squares consisted of 3 different digits [From Max Alekseyev, May 29 2009]

CROSSREFS

Cf. A053901.

Sequence in context: A070226 A273669 A129829 * A318681 A183207 A304797

Adjacent sequences:  A053897 A053898 A053899 * A053901 A053902 A053903

KEYWORD

nonn,base,changed

AUTHOR

Patrick De Geest, Mar 15 2000

EXTENSIONS

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

Two more terms from Jon E. Schoenfield, Sep 03 2006

Further terms from Mishima's webpage added by Max Alekseyev, May 29 2009

STATUS

approved

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Last modified October 22 19:53 EDT 2019. Contains 328319 sequences. (Running on oeis4.)