It's a bit too small but I think I made it work

SELECT * FROM gallery2 WHERE topic_id="742052" UNION SELECT * FROM gallery2 WHERE topic_id="245130" UNION SELECT * FROM gallery2 WHERE topic_id="87377" UNION SELECT * FROM gallery2 WHERE topic_id="846012" UNION SELECT * FROM gallery2 WHERE topic_id="1367271" UNION SELECT * FROM gallery2 WHERE topic_id="1451278" UNION SELECT * FROM gallery2 WHERE topic_id="1738316" UNION SELECT * FROM gallery2 WHERE topic_id="1710395" UNION SELECT * FROM gallery2 WHERE topic_id="634539" UNION SELECT * FROM gallery2 WHERE topic_id="284614" UNION SELECT * FROM gallery2 WHERE topic_id="316092" UNION SELECT * FROM gallery2 WHERE topic_id="1390683" UNION SELECT * FROM gallery2 WHERE topic_id="940725" UNION SELECT * FROM gallery2 WHERE topic_id="358927" UNION SELECT * FROM gallery2 WHERE topic_id="820533" UNION SELECT * FROM gallery2 WHERE topic_id="1480369"