Question

Whoever answers is the brainliest
I need answer with logic cuz it is mental ability
Find the next term
1,3,9,33,153,?

Answer 1

We know that,

1 = 1
3 = 1 + 1*2 = 1! + 2!
9 = 1 + 1*2 + 1*2*3 = 1!+2!+3!
33 = 1+1*2 + 1*2*3 + 1*2*3*4 = 1! + 2! +3! +4!
153 = 1! + 1*2 + 1*2*3 + 1*2*3*4 + 1*2*3*4*5 = 153

Now. next term is
1+ 1*2 +1*2*3 + 1*2*3*4 + 1*2*3*4*5 + 1*2*3*4*5*6 = 153 + 720 = 873