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A058440 Squares composed of digits {0,4,7}, not ending with zero. 1
4, 7744, 407044, 4044074004774077447400004400704 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Cf. A058439.
Sequence in context: A077258 A272165 A304994 * A058464 A053951 A058460
KEYWORD
nonn,base,hard,more
AUTHOR
Patrick De Geest, Nov 15 2000
STATUS
approved

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Last modified March 29 10:58 EDT 2024. Contains 371268 sequences. (Running on oeis4.)