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A115763 Numbers n such that n is prime and digits of n^2, reversed, include digits of n as substring. 4
5, 87690769, 311314139, 44466725441, 38460053757197 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(6) > 6*10^14. - Giovanni Resta, Oct 21 2018

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

311314139^2 = 969164(931413113)21.

CROSSREFS

Cf. A115761, A115762, A115764, A115738.

Sequence in context: A277630 A231018 A115738 * A052000 A094467 A242828

Adjacent sequences:  A115760 A115761 A115762 * A115764 A115765 A115766

KEYWORD

nonn,base,more

AUTHOR

Giovanni Resta, Jan 30 2006

EXTENSIONS

a(5) from Giovanni Resta, Sep 11 2018

STATUS

approved

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Last modified April 22 22:16 EDT 2019. Contains 322378 sequences. (Running on oeis4.)