Change unique file names into new unique filenames

I have 84 files with the following names splitseqs.1, spliseqs.2 etc.
and I want to change the .number to a unique filename.

E.g.
change splitseqs.1 into splitseqs.7114_1#24
and
change spliseqs.2 into splitseqs.7067_2#4

So all the current file names are unique, so are the new file names.

Would appreciate if someone could help me with things!!

Thanks in advance =)

Cheers,
Astrid

seq_1=7000
seq_2=20
for file_name in `ls $dir_name/$file_pattern`
do
f_name=`echo $file_name|cut -d'.' -f1`
f_seq=`echo $file_name|cut -d'.' -f2`
mv $file_name $dir_name/$f_name'.'$seq_1'_'$f_seq'#'$seq_2
seq_1=`expr $seq_1 + 1`
seq_2=`expr $seq_2 + 2`
done