1. 3 6 13 27 55 111 ...
All of these types of problems can be answered by a simple polynomial fit:
y=1720∗(−n6+39∗n5−325∗n4+1425∗n3−2194∗n2+2496∗n+720) < p easy if you think about it
first ten elements would be:
1,3,6,13,27,55,111,218,409,727,1224
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