

A227529


CopelandErdős constant primes (concatenation of entries (digits) of A033308 is prime).


3




OFFSET

1,1


COMMENTS

Primes obtained by taking consecutive decimal digits (starting with the first) of the CopelandErdős constant.
The next terms are too big to display: a(5) = 235711131...6917017097 (353 digits), a(6) = 235711131...1701709719 (355 digits), ...
See A227530 for an equivalent but more compact way of listing the terms, namely, by giving the number of digits of the constant A033308 that must be taken to get a prime.  M. F. Hasler, Apr 24 2017


LINKS



CROSSREFS

Cf. A227530 (number of decimal digits in the nth CopelandErdős prime).
Cf. A033308 (Decimal expansion of CopelandErdős constant: concatenate primes).


KEYWORD

base,nonn,hard


AUTHOR



STATUS

approved



