Question

write a recursive formula for the sequence 15,26,48,92,180,... then find the next term.

Answer 1

\(f_1=11\), \(f_n=2f_{n-1}\),
\(g_1=f_1+4\), \(g_n=f_n+4\), \(n\geqslant2\).

Answer 2

The next term is \(356\).

Answer 3

thank you very much :)