Basically the seven times table. You'll need this. Who has time for math in the apocalypse. Multiples of 7 71421283542495663707784919810511211912613314014715416116817518218919620321021722423123824525225926627328028729430130831532232933634335035736437137838539239940641342042743444144845546246947648349049750451151852553253954655356056757458158859560260961662363063764465165866567267968669370070771472172873574274975676377077778479179880581281982683384084785486186887588288989690391091792493193894595295996697398098799410011008101510221029103610431050105710641071107810851092109911061113112011271134114111481155116211691176118311901197120412111218122512321239124612531260126712741281128812951302130913161323133013371344135113581365137213791386139314001407141414211428143514421449145614631470147714841491149815051512151915261533154015471554156115681575158215891596160316101617162416311638164516521659166616731680168716941701170817151722172917361743175017571764177117781785179217991806181318201827183418411848185518621869187618831890189719041911191819251932193919461953196019671974198119881995200220092016202320302037204420512058206520722079208620932100210721142121212821352142214921562163217021772184219121982205221222192226223322402247225422612268227522822289229623032310231723242331233823452352235923662373238023872394240124082415242224292436244324502457246424712478248524922499250625132520252725342541254825552562256925762583259025972604261126182625263226392646265326602667267426812688269527022709271627232730273727442751275827652772277927862793280028072814282128282835284228492856286328702877288428912898290529122919292629332940294729542961296829752982298929963003301030173024303130383045305230593066307330803087309431013108311531223129313631433150315731643171317831853192319932063213322032273234324132483255326232693276328332903297330433113318332533323339334633533360336733743381338833953402340934163423343034373444345134583465347234793486349335003507351435213528353535423549355635633570357735843591359836053612361936263633364036473654366136683675368236893696370337103717372437313738374537523759376637733780 Notes Expect a bloodmoon horde party of zombie friends to arrive on these days. Zombie friends will arrive in the evening at 22:00 on such days by default. Credits Featured Image: "More math..." by herval @ Flickr (CC BY 2.0) https://www.flickr.com/photos/herval/406295610 Props to Cronos in the comments for suggesting a note about arrival time.