document.write( "Question 1121187: I have generated the following number series using a very simple method that includes only addition. I will pay five dollars to anyone who can tell me the method I used and the next number in the series. Another five dollars for the number after that. Anyone?\r
\n" ); document.write( "\n" ); document.write( "6,13,6,9,12,5,12.......\r
\n" ); document.write( "\n" ); document.write( "Same method, slightly altered 15,12,19,12,15,18,11....\r
\n" ); document.write( "\n" ); document.write( "Good luck!\r
\n" ); document.write( "\n" ); document.write( "Dan
\n" ); document.write( "

Algebra.Com's Answer #737010 by ikleyn(52793)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "Not a Math problem.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "--------------
\n" ); document.write( "Comment from student: Hi Ikleyn, Why do you say it is not a math problem? I generated these numbers by a combination
\n" ); document.write( "of counting and addition. Thanks, Dan
\n" ); document.write( "--------------\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "My response : \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Dan, \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Reading thoughts from your head and/or guessing the algorithms from your head is not a school Math problem.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "P.S. I am with Math just more than 50 years, so I can distinct a Math problem from not-a-Math problem with the same certainty as
\n" ); document.write( "you can distinct a black cat from a white one.     //  Your question  \"Why ?\"  is not applicable in this case.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );