How do I delete this file?

[Marshall Midden <m4_(_at_)_NTS_(_dot_)_Umn_(_dot_)_EDU>]

As root:
    cd /home/lost+found
    ls -lg
      total 0
      cr-x--srwT  1 1843049577  3550957470  123, 246 Oct  2  1988 #3655916*
    rm #3655916*
      rm: #3655916: Operation not permitted


    rm -d #3655916
      rm: #3655916: Operation not permitted
    rm -f #3655916
      rm: #3655916: Operation not permitted
    rm -i #3655916
      remove #3655916? y
      rm: #3655916: Operation not permitted
    rm -P #3655916
      rm: #3655916: Operation not permitted
    rm -R #3655916
      rm: #3655916: Operation not permitted
    echo $status
      1

Created after one of those panics that leave the file system messed up.
(-current, cvs updated 10am from anoncvs1.ca.openbsd.org), new kernel, etc.

I had hoped that running softupdates would make thing less of a problem... .
It does appear to be the case that the file system is less messed up if one
does a power cycle, instead of letting the disks get sync-ed... .

(got a divide by zero panic this last time.)