The strong endings are also used after pronouns that have no ending (nach Pronomen ohne Endung): allerlei, etwas, genug, manch, mancherlei, mehr, nichts, viel, welch, wenig, solch and also after the pronouns: andere, derartige, einige, einzelne, etliche, folgende, gewisse, lauter, mehrere, ein paar, verschiedene, viele, wenige. They are used following ich, du and whole numbers greater than one.
It's worth noting the peculiarities of a few adjectives. Adjectives ending in -a are not declined - rosa, lila, prima, usw. Those ending -el drop the e when declined, for example: dunkel, nobel, heikel would add the appropriate ending to dunkl, nobl, heikl. A similar thing happens with some ending -er - after a diphthong as in sauer and where the adjective comes from a foreign language. But there are some ending in -er that don't follow this pattern - finster, bitter are good examples. Hoch drops the c when used attributively.