•10050050010

[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/session.php on line 580: sizeof(): Parameter must be an array or an object that implements Countable
[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/session.php on line 636: sizeof(): Parameter must be an array or an object that implements Countable
•10050050010

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10050050010

Posted: Mon Oct 16, 2017 8:27 pm

by ada

$T_n=3^n-2$&emsp;if&emsp;$T_{n+1}=3T_n+4$,&emsp;$T_1=1$&emsp;for all $n\ge1$ and $n\in\mathbb{Z}^+$