

A227642


Cubes which can be represented as sum of a prime and its reverse in at least one way.


0




OFFSET

1,1


COMMENTS

a(6) > 2*10^13.  Giovanni Resta, Jul 25 2013


LINKS

Table of n, a(n) for n=1..5.
Shyam Sunder Gupta, Can You Find ( CYF No. 21)


EXAMPLE

353393243 = 203993941 + 149399302.


MATHEMATICA

cubeQ[n_Integer?Positive] := IntegerQ[n^(1/3)] ; Union[Select[Table[Prime[x] + FromDigits[Reverse[IntegerDigits[Prime[x]]]], {x, 1000000000}], cubeQ]]


CROSSREFS

Cf. A067030, A227525.
Sequence in context: A288273 A219271 A167517 * A189124 A189125 A258610
Adjacent sequences: A227639 A227640 A227641 * A227643 A227644 A227645


KEYWORD

nonn,base


AUTHOR

Shyam Sunder Gupta, Jul 18 2013


EXTENSIONS

a(5) from Giovanni Resta, Jul 25 2013


STATUS

approved



