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Search: id:A053899
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A053899 Squares composed of digits {1,4,7}. +0
3
1, 4, 144, 441, 1444, 7744, 7447441, 4147177477444, 7174474747441, 1447471174444717444 (list; graph; listen)
OFFSET

0,2

LINKS

Author?, Source(txt)

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

CROSSREFS

Cf. A053898.

Adjacent sequences: A053896 A053897 A053898 this_sequence A053900 A053901 A053902

Sequence in context: A048432 A122422 A083688 this_sequence A058414 A053891 A053897

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.

EXTENSIONS

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

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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