You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 15,18-diazaoctacyclo[18.11.0.02,14.03,11.04,9.015,19.022,30.024,29]hentriaconta-1(20),2(14),3(11),4,6,8,12,16,18,21,24,26,28,30-tetradecaene by IUPAC nomenclature, provide its molecular formula.
user
C29H18N2
assistant