Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
libkdeinit5_khelpcenter.so()(64bit)
khelpcenter
khelpcenter(x86-64)

Requires :

perl(Getopt::Long)
libstdc++.so.6(GLIBCXX_3.4.21)(64bit)
libQt5DBus.so.5()(64bit)
libc.so.6()(64bit)
libKF5WidgetsAddons.so.5()(64bit)
libKF5Codecs.so.5()(64bit)
libQt5Widgets.so.5()(64bit)
docbook-style-xsl
libKF5Archive.so.5()(64bit)
rtld(GNU_HASH)
libKF5Bookmarks.so.5()(64bit)
libKF5ConfigGui.so.5()(64bit)
libQt5Xml.so.5()(64bit)
libQt5Core.so.5()(64bit)
libstdc++.so.6(GLIBCXX_3.4)(64bit)
libKF5KIOCore.so.5()(64bit)
libKF5XmlGui.so.5()(64bit)
perl-base
libGrantlee_Templates.so.5()(64bit)
libgcc_s.so.1(GCC_3.0)(64bit)
rpmlib(PayloadIsXz) <= 5.2-1
libKF5I18n.so.5()(64bit)
libKF5ConfigCore.so.5()(64bit)
libKF5Parts.so.5()(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libQt5Gui.so.5()(64bit)
libstdc++.so.6()(64bit)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libKF5ConfigWidgets.so.5()(64bit)
libKF5CoreAddons.so.5()(64bit)
libKF5DBusAddons.so.5()(64bit)
libxapian.so.22()(64bit)
libKF5KIOWidgets.so.5()(64bit)
libKF5Completion.so.5()(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
libKF5WindowSystem.so.5()(64bit)
libxml2.so.2()(64bit)
libkdeinit5_khelpcenter.so()(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libstdc++.so.6(GLIBCXX_3.4.9)(64bit)
libKF5DocTools.so.5()(64bit)
libgcc_s.so.1()(64bit)
libKF5KHtml.so.5()(64bit)
libKF5Service.so.5()(64bit)

Content of RPM :
/etc/xdg/khelpcenter.categories
/usr/bin/khelpcenter
/usr/lib64/libkdeinit5_khelpcenter.so
/usr/libexec/khc_mansearch.pl
/usr/libexec/khc_xapianindexer
/usr/libexec/khc_xapiansearch
/usr/share/applications/org.kde.Help.desktop
/usr/share/config.kcfg/khelpcenter.kcfg
/usr/share/kde4/services/khelpcenter.desktop
/usr/share/khelpcenter
/usr/share/khelpcenter/glossary.xslt
/usr/share/khelpcenter/plugins
/usr/share/khelpcenter/plugins/Applications
/usr/share/khelpcenter/plugins/Applications/.directory
/usr/share/khelpcenter/plugins/Manpages
/usr/share/khelpcenter/plugins/Manpages/.directory
/usr/share/khelpcenter/plugins/Manpages/man1.desktop
/usr/share/khelpcenter/plugins/Manpages/man2.desktop
/usr/share/khelpcenter/plugins/Manpages/man3.desktop
/usr/share/khelpcenter/plugins/Manpages/man4.desktop
/usr/share/khelpcenter/plugins/Manpages/man5.desktop
/usr/share/khelpcenter/plugins/Manpages/man6.desktop
/usr/share/khelpcenter/plugins/Manpages/man7.desktop
/usr/share/khelpcenter/plugins/Manpages/man8.desktop
/usr/share/khelpcenter/plugins/Scrollkeeper
/usr/share/khelpcenter/plugins/Scrollkeeper/.directory
/usr/share/khelpcenter/plugins/browsercontrolmodules.desktop
/usr/share/khelpcenter/plugins/filemanagercontrolmodules.desktop
/usr/share/khelpcenter/plugins/fundamentals.desktop
/usr/share/khelpcenter/plugins/info.desktop
There is 185 files more in these RPM.