A086164 Binary representation of the concatenation of the first n primes.

10, 10111, 11101011, 100100110101, 111001100010111111, 1011001111010101010101001, 10001100011111101010101000010101, 11011011100001011110100111000001000111

Offset

1,1

Links

Table of n, a(n) for n=1..8.

Prog

(PARI) concatprbin(n) = { y=2; print1(10", "); forprime(x=3, n, y=eval(concat(Str(y), Str(x))); b=binary(y); ln=length(b); z=Str(b[1]); for(j=2, ln, z=concat(Str(z), Str(b[j])); ); print1(z, ", ") ) }

Crossrefs

Sequence in context: A001098 A266872 A267705 * A138119 A327233 A138118

Adjacent sequences: A086161 A086162 A086163 * A086165 A086166 A086167

Keyword

nonn,base

Author

Cino Hilliard, Sep 08 2003

Status

approved