Multiple choice general knowledge math & puzzles

0,1,4,18,96,?

  1. 718

  2. 719

  3. 696

  4. 600
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pattern is $a_n = (a_{n-1} + n-1) imes (n-1)$. $a_1=0$. $a_2=(0+1) imes 1=1$. $a_3=(1+1) imes 2=4$. $a_4=(4+2) imes 3=18$. $a_5=(18+6) imes 4=96$. $a_6=(96+24) imes 5=600$. The added value is the factorial of the step.

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