Brain Teasers
IMPOSSIBLE Series
See if you can tell me what number the question mark represents?
0 6 78 1020 15620 279930 ?
0 6 78 1020 15620 279930 ?
Hint
use excelAnswer
57647941^1*1-1 = 0
2^2*2-2 = 6
3^3*3-3 = 78
4^4*4-4 = 1020
5^5*5-5 = 15620
6^6*6-6 = 279930
7^7*7-7 = 5764794
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