

A215692


Smallest prime whose decimal expansion consists of the concatenation of a 1digit cube, a 2digit cube, a 3digit cube, ..., and an ndigit cube, or 0 if there is no such prime.


0



0, 127, 127343, 1275122197, 127125100019683, 127125100012167148877, 1271251000106481038233442951, 127125100010648103823100000014348907, 127125100010648103823100000010077696108531333, 1271251000106481038231000000100776961005446251939096223
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OFFSET

1,2


COMMENTS

This is to cubes A000578 as A215689 is to squares A000290.


LINKS

Table of n, a(n) for n=1..10.


EXAMPLE

a(1) = 0 because no 1digit cube {0,1,8} is prime.
a(2) = 127 because 127 is prime and is the concatenation of 1=1^3 and 27 = 3^3.


CROSSREFS

Cf. A000040, A000578, A215689, A215641, A215647.
Sequence in context: A217914 A203798 A195218 * A212860 A334668 A135813
Adjacent sequences: A215689 A215690 A215691 * A215693 A215694 A215695


KEYWORD

nonn,base


AUTHOR

Jonathan Vos Post, Aug 20 2012


EXTENSIONS

More terms from Alois P. Heinz, Aug 21 2012


STATUS

approved



