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A058461 Numbers k such that k^2 contains only digits {2,6,7}. 1
26, 526, 1636345826, 512130136076, 150573163864701424 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..5.
P. De Geest, Index to related sequences
Hisanori Mishima, Sporadic tridigital solutions
CROSSREFS
Cf. A058462.
Sequence in context: A163201 A205990 A230247 * A323492 A265461 A257518
Adjacent sequences: A058458 A058459 A058460 * A058462 A058463 A058464
KEYWORD
nonn,base,hard,more
AUTHOR
Patrick De Geest, Nov 15 2000
EXTENSIONS
a(5) (from the Mishima web site) added by Max Alekseyev, Jan 11 2007
STATUS
approved

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Last modified May 14 03:59 EDT 2024. Contains 372528 sequences. (Running on oeis4.)