<prompt> Hebu a_n 4n3 6n2 4n 1. Tafutaa_8 a_9 a_10 vitone a_23.  <response>: Tunaona kwamba a_n 4n3 6n2 4n 1 n4 4n3 6n2 4n 1 - n4 n 14 - n 4, hivyoa_8 a_9 a_10 vitone a_23 94 - 84 104 - 94 114 - 104 nukta 244 - 234 244 - 84 327680. 