Q1. THE FIRST ATTENDANCE QUESTION WAS:
What is oeis sequence A1998

A1. MY ANSWER TO THE FIRST ATTENDANCE QUESTION IS:
A1998
Bending a piece of wire of length n+1; walks of length n+1 on a tetrahedron; also non-branched catafusenes with n+2 condensed hexagons.



Q2. THE  SECOND ATTENDANCE QUESTION WAS:
Rank the importance

A2. MY ANSWER TO THE  SECOND ATTENDANCE QUESTION IS:
Euler6764
Zeilberger842
Hilbert285
Newton129
Archimedes57
Einstein51