

A230082


a(n) is the smallest prime that is the first of n consecutive primes whose product of digits is equal and nonzero.


4




OFFSET

1,1


LINKS



EXAMPLE

a(3) = 442619, since 442619, 442633 and 442691 are three consecutive primes with product of digits as 1728 and this is the first occurrence of three consecutive primes whose product of digits is equal and nonzero.


CROSSREFS



KEYWORD

base,more,nonn


AUTHOR



EXTENSIONS



STATUS

approved



