

A190480


Concatenation of first n digits in the concatenation of first n primes written in base 2.


22



1, 10, 101, 1011, 10111, 101110, 1011101, 10111011, 101110111, 1011101111, 10111011111, 101110111110, 1011101111101, 10111011111011, 101110111110111, 1011101111101111, 10111011111011110, 101110111110111101, 1011101111101111011
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OFFSET

1,2


COMMENTS

The terms are 1, 2, 5, 11, 23, 46, 93, 185, 375, ... in decimal.
The terms are the first n digits of the concatenation 10//11//101//111//1011//1101//.. generated with A004676.


LINKS



MATHEMATICA

With[{cc=Flatten[Table[IntegerDigits[p, 2], {p, Prime[ Range[ 10]]}]]}, Table[ FromDigits[Take[cc, n]], {n, Length[cc]}]] (* Harvey P. Dale, Jan 26 2021 *)


CROSSREFS



KEYWORD

nonn,easy,base


AUTHOR



STATUS

approved



