1,2,6,42,1806, What is the sixth number in the sequence ?
1,2,6,42,1806, What is the sixth number in the sequence ?
Try dividing each term by the previous term.
Do you see the pattern? What is the sixth number?
I have to admit, this is a bit of a tricky one!
1
2 = previous number * (previous number + 1) 1*(1+1)
6 = previous number * (previous number + 1) 2*(2+1)
42 = previous number * (previous number + 1) 6*(6+1)
1806 = previous number * (previous number + 1) 42*(42+1)
3263442
Cap, your right. It could have been any numbers. So there's the explanation
Understood.
Just read your 1st answer and understand it now! Doh!
Letter sequence ___ fpo , inm, mlk, rji
Try this: for each letter replace it by the number representing its numeric place in the alphabet. For example 'f' is the 6th letter, 'p' is the 16th, and 'o' is the 15th, so the first entry 'fpo' corresponds to the sequence 6-16-15. You should see a pattern for the first numbers in each of your letter sequences, and also for the 2and 3rd.
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