OFFSET
0,2
COMMENTS
MATHEMATICA
Map[FromDigits[IntegerDigits[#, 2]] &, Select[Range[0, 20000], BitXor[10*#, 11*#] == 21*# &]] (* Paolo Xausa, Sep 29 2024 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Antti Karttunen, Feb 01 2006
STATUS
approved