A230082 a(n) is the smallest prime that is the first of n consecutive primes whose product of digits is equal and nonzero.

2, 1913, 442619, 336737123, 123381165263, 11865678519229

Offset

1,1

Links

Table of n, a(n) for n=1..6.

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

Cf. A071613, A007954, A053666.

Sequence in context: A259487 A329663 A069793 * A217372 A160299 A232963

Adjacent sequences: A230079 A230080 A230081 * A230083 A230084 A230085

Keyword

base,more,nonn

Author

Shyam Sunder Gupta, Oct 08 2013

Extensions

a(5)-a(6) from Giovanni Resta, Oct 08 2013

Status

approved