/usr/ is in elpa-seq 2.20-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/emacsen-common/
/usr/lib/emacsen-common/packages/
/usr/lib/emacsen-common/packages/compat/
/usr/lib/emacsen-common/packages/compat/elpa-seq
/usr/lib/emacsen-common/packages/install/
/usr/lib/emacsen-common/packages/install/elpa-seq
/usr/lib/emacsen-common/packages/remove/
/usr/lib/emacsen-common/packages/remove/elpa-seq
/usr/share/
/usr/share/doc/
/usr/share/doc/elpa-seq/
/usr/share/doc/elpa-seq/changelog.Debian.gz
/usr/share/doc/elpa-seq/copyright
/usr/share/emacs/
/usr/share/emacs/site-lisp/
/usr/share/emacs/site-lisp/elpa-src/
/usr/share/emacs/site-lisp/elpa-src/seq-2.20/
/usr/share/emacs/site-lisp/elpa-src/seq-2.20/seq-24.el
/usr/share/emacs/site-lisp/elpa-src/seq-2.20/seq-25.el
/usr/share/emacs/site-lisp/elpa-src/seq-2.20/seq-autoloads.el
/usr/share/emacs/site-lisp/elpa-src/seq-2.20/seq-pkg.el
/usr/share/emacs/site-lisp/elpa-src/seq-2.20/seq.el