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A053891 Squares composed of digits {1,3,4}. 3
1, 4, 144, 441, 1444, 1411344, 431434441, 1441113444, 11414343334144, 134433311433444, 4334114143334143111441, 14431113411144114144433444, 331413131434411141441331411344, 444341333431434111311131411343131143441 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Author?, Source(txt)
FORMULA
a(n) = A053890(n)^2.
CROSSREFS
Cf. A053890.
Sequence in context: A083688 A053899 A058414 * A053897 A017294 A273698
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
One more term from Jon E. Schoenfield, Sep 03 2006
Two more terms from Mishima's page added by Max Alekseyev, Jan 28 2012
STATUS
approved

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Last modified July 14 22:52 EDT 2024. Contains 374323 sequences. (Running on oeis4.)