

A105305


Primes formed by reverse concatenation of 3 consecutive triangular numbers.


0



631, 1063, 276253231, 535652535151, 775076267503, 141961402813861, 162901611015931, 199001970119503, 326403238532131, 460564575345451, 593405899658653, 705007012569751, 723907201071631, 918069137890951
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OFFSET

1,1


LINKS



EXAMPLE

a(1)=631 because 631 is the prime formed by reverse concatenation of 3 consecutive triangular numbers i.e. 1,3 and 6.


CROSSREFS



KEYWORD

base,nonn


AUTHOR



STATUS

approved



