bash-4.3$ echo 3 | awk '{l="\\ \\";print"__\n"l"\n "l;for(;--$1;)print"__"l"\n\\  __\\\n "l;print"  "l"\n   \\/"}'
__
\ \
 \ \
__\ \
\  __\
 \ \
__\ \
\  __\
 \ \
  \ \
   \/