oo
____
\ `
\ 2112000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
\ ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
) /19*300\
/ |------|
/ \ 20 /
/___,
n = 1
Sum(2112000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000/((19*300/20)), (n, 1, oo))