ok so the 2nd and 3rd are obviously wrong
there must be a craxy pattern
hmm
1+4=5 corerct
2+5=7
that is 5 away from 12
3+6=9
that is 12 away from 21
I see it
1+4=5
2+5+5=12
3+6+12=21
so the pattern is takee the result from the last equaton and add to the next
see how it goes, 1,2,3, then jumps to 8
we need to buildto 8
4+7+21=32
5+8+32=45
6+9+45=50
7+10+50=67
8+11+67=86
the result is 86