4.13.0-21.24~16.04.1) is not available, but a newer one is (4.13.0-45.50~16.04.1). We redirected you there.
/usr/share/terminfo/p/pcansi33m is in ncurses-term 6.0+20160213-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/terminfo/p/pcansi-33-m