find the odd man out:1,3,10,21,64,129,356,777
Choose the correct answer:
A) 3
B) 10
C) 21
D) 64
E) 356
1=1   3=3   10=1+0= 
<gadget id="calculator">1+0</gadget>
<output>1</output>
1   21=2+1= 
<gadget id="calculator">2+1</gadget>
<output>3</output>
3   64=6+4= 
<gadget id="calculator">6+4</gadget>
<output>10</output>
10=1+0= 
<gadget id="calculator">1+0</gadget>
<output>1</output>
1   129=1+2+9= 
<gadget id="calculator">1+2+9</gadget>
<output>12</output>
12=1+2= 
<gadget id="calculator">1+2</gadget>
<output>3</output>
3   356=3+5+6= 
<gadget id="calculator">3+5+6</gadget>
<output>14</output>
14=1+4= 
<gadget id="calculator">1+4</gadget>
<output>5</output>
5( wrong one.. it should be 1)   777=7+7+7= 
<gadget id="calculator">7+7+7</gadget>
<output>21</output>
21=2+1= 
<gadget id="calculator">2+1</gadget>
<output>3</output>
3   Alternative 1 and 3 series..   ANSWER:64
<result>D</result>
find the odd man out:1,3,10,21,64,129,356,777