Print strings without sharing characters Edit: Allowed to reuse whitespaces. 

Your task is to write n programs (or functions, or bodies of functions without using parameters or the function names) in the same language. The kth program should output the (cardinal) number k in standard English in lowercase (with an optional trailing newline). So the first program should output one, the second should output two, etc. For a number having two parts, they should be separated by a hyphen like twenty-one.

But no two programs in your submission can share non-whitespace characters or whitespace characters doing useful works. For example, if your first program is just "one", then none of " o n and e can be used again in your other programs.

You can use whitespace characters (spaces, newlines and tabs) in two or more programs, if they only serve as separators or indentation and don't do anything by themselves. So you can't reuse them in the Whitespace language, and you can't use them in strings in more than one program.

You can only use printable ASCII characters, tabs, and newlines (including CR and LF). Every program must contain at least 1 character.

Your score is the sum of 1/program size^1.5. Highest score wins. You can use this Stack Snippet (or this CJam code) to calculate your score:



function updatescore(a){var l=a.value.split("\n"),s=0;for(var i=0;i&lt;l.length;i++){var t=l[i].length;t-=t&amp;&amp;l[i][t-1]=="\r";if(t)s+=Math.pow(t,-1.5);}document.getElementById('result').textContent=s;}
&lt;textarea id="input" placeholder="Put your code here, one per line." style="width:100%;height:150px;box-sizing:border-box" oninput="updatescore(this)" onpropertychange="updatescore(this)"&gt;&lt;/textarea&gt;&lt;div&gt;Your score: &lt;span id="result"&gt;0&lt;/span&gt;&lt;/div&gt;
CJam, 0.24075

Programs

BA1]100cf|
"two"
{hree}`W&lt;7a.-
N)92+_9+_6+_2~+
S(84^I^U$F^X$G^Y$(
's'i'x


Thanks to @user23013 for his suggestion to use ' for six.

Output, length, score, used characters

one    10  0.03162          01       AB         ]    c f         |  
two     5  0.08944  "                                     o  tw     
three  13  0.02133        -.     7  &lt;        W     `a e h  r    { } 
four   15  0.01721      )+    2 6  9      N       _                ~
five   18  0.01309   $ (       4  8    FGI SU XY ^                  
six     6  0.06804    '                                  i  s  x


Verify the results yourself in the CJam interpreter.