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A053960 Numbers k such that k^2 contains only digits {4,6,9}. 1
2, 3, 7, 8, 212, 264, 2236, 3114, 3157, 31614, 68187, 254842, 80434114, 263527313, 3073591864, 6670791907, 21134016762, 21610059386, 97312381892, 22237232291063, 999997323321167445187, 22236561446627600040614, 9718263579193026119075264 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..23.

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

Author?, Source (txt)

Hisanori Mishima, Sporadic tridigital solutions

CROSSREFS

Cf. A053961.

Sequence in context: A038034 A103173 A098863 * A114056 A168222 A323384

Adjacent sequences:  A053957 A053958 A053959 * A053961 A053962 A053963

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Mar 15 2000

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005

a(20)-a(23) from Mishima's website, added by Max Alekseyev, Nov 30 2017

STATUS

approved

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Last modified June 4 11:24 EDT 2020. Contains 334825 sequences. (Running on oeis4.)