What number would replace the question mark in this quite difficult number sequence ?
21 32 54 87 131 ?  Choose the correct choice from the following answers
A) 300	B) 125	C) 450	D) 340	E) 186
186   186   186xplanation :   21+11*1= 
<gadget id="calculator">21+11*1</gadget>
<output>32</output>
&gt; 32   32+11*2= 
<gadget id="calculator">32+11*2</gadget>
<output>54</output>
&gt; 54   54+11*3= 
<gadget id="calculator">54+11*3</gadget>
<output>87</output>
&gt; 87   87+11*4= 
<gadget id="calculator">87+11*4</gadget>
<output>131</output>
&gt; 131   131+11*5= 
<gadget id="calculator">131+11*5</gadget>
<output>186</output>
&gt; 186
<result>E</result>
What number would replace the question mark in this quite difficult number sequence ?
21 32 54 87 131 ?