FIND THE NEXT THREE TERM
Posted: Mon Feb 06, 2012 11:23 pm
1,1,1,1,4,7,13,25,....,....,.....
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See that each term $a_{n}=a_{n-1}+a_{n-2}+a_{n-3}+a_{n-4}$.For $n=1,2,3.....$.$\therefore a_{9}=a_{8}+a_{7}+a_{6}+a_{5}=49$.For the same cause,$a_{10}=94,a_{11}=181$.ahsaf wrote:i do not understand