Question

class series 1,4,13,40,121,?

Answer 1

=>The next pattern is 364... 

=>The pattern is by multiples of 3 added to the preceding number; 

=>Example, 1+3= 4 that's 3 
4+9=13 because 3*3 is 9 
13+27=40 coz 9*3 is 27 
40+81=121 coz 27*3 is 81 
121+243=364 coz 81*3 is 243 

And so on and so forth.. ☺️
Hope this helps!

#Be Brainly✌️

Answer 2

1*3+1=4
4*3+1=13
13*3+1=40
40*3+1=121

therefore.

121*3+1
364



that's all