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A191232 Concatenation of primes written in base 2 (A004676). 5
1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

COMMENTS

Binary expansion of the "binary" Copeland-Erdős constant: concatenate primes in base two. - Daniel Forgues, Mar 25 2018

Could be read as a table whose rows are the binary digits of the n-th prime, A004676(n). - M. F. Hasler, Oct 25 2019

LINKS

Table of n, a(n) for n=1..92.

EXAMPLE

0.10111011111011110110001... ("binary" Copeland-Erdős constant).

The prime number 23 is 10111 in base 2, and 1, 0, 1, 1, 1 is in the sequence, a(29) through a(33). - Michael B. Porter, Apr 05 2018

MATHEMATICA

IntegerDigits[#, 2] & /@ Prime@ Range@ 19 // Flatten (* Michael De Vlieger, Apr 07 2018 *)

PROG

(PARI) concat(binary(vector(20, n, prime(n))))  \\ M. F. Hasler, Oct 08 2011

CROSSREFS

Cf. A004676 (primes in binary), A066747 (decimal expansion of the constant), A033308 (Copeland-Erdős constant in base 10), A190480.

Sequence in context: A317198 A131379 A284677 * A267814 A267272 A181656

Adjacent sequences:  A191229 A191230 A191231 * A191233 A191234 A191235

KEYWORD

nonn,base

AUTHOR

Juri-Stepan Gerasimov, May 27 2011

STATUS

approved

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Last modified May 14 03:33 EDT 2021. Contains 343872 sequences. (Running on oeis4.)