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A028869 Squares of primes with digits in descending order. 3
4, 9, 841, 961 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

No other solutions below 4.10^18 (probably finite) - Dec 15 1999

LINKS

Table of n, a(n) for n=0..3.

CROSSREFS

Cf. A028868, A028865, A028866.

Sequence in context: A068708 A063248 A027522 * A179935 A073172 A168139

Adjacent sequences:  A028866 A028867 A028868 * A028870 A028871 A028872

KEYWORD

nonn,base,hard

AUTHOR

Patrick De Geest

STATUS

approved

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Last modified June 19 14:08 EDT 2013. Contains 226411 sequences.