OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
In binary representation 80='1010000' has five 0's and A000040(80)=409='110011001' has five 1's: therefore 80 is a term.
MATHEMATICA
Select[Range[600], DigitCount[#, 2, 0]==DigitCount[Prime[#], 2, 1]&] (* Harvey P. Dale, Jan 07 2014 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jun 23 2002
STATUS
approved