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wu :: forums    riddles    medium (Moderators: Eigenray, Grimbal, towr, SMQ, Icarus, william wu, ThudnBlunder)    Sequence « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: Sequence  (Read 650 times) Kaotis Newbie     Gender: Posts: 18 Sequence   « on: Aug 23rd, 2004, 11:21pm » Quote Modify I I'm not sure if it's hard enough to put it in the Medium forum.... So solve it!   6.28.469,8128,? « Last Edit: Aug 23rd, 2004, 11:22pm by Kaotis » IP Logged Rezyk Junior Member     Gender: Posts: 85 Re: Sequence   « Reply #1 on: Aug 24th, 2004, 12:28am » Quote Modify Quote: 6.28.469,8128,?   "6,28,496,8128,?" would be much easier... IP Logged rmsgrey Uberpuzzler     Gender: Posts: 2873 Re: Sequence   « Reply #2 on: Aug 24th, 2004, 3:44am » Quote Modify In fact it would be perfectly simple, though I only ever got around to proving that a certain set of numbers all had a certain property, rather than proving that only those numbers do. IP Logged ThudnBlunder wu::riddles Moderator Uberpuzzler The dewdrop slides into the shining Sea     Gender: Posts: 4489 Re: Sequence   « Reply #3 on: Aug 24th, 2004, 11:22am » Quote Modify Quote: So solve it! :33550336   IP Logged THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you. Kaotis Newbie     Gender: Posts: 18 Re: Sequence   « Reply #4 on: Aug 29th, 2004, 1:28pm » Quote Modify Yeap! it's perfectly correct!   how long it's take you to figure this out? IP Logged rmsgrey Uberpuzzler     Gender: Posts: 2873 Re: Sequence   « Reply #5 on: Aug 31st, 2004, 7:19am » Quote Modify Since I'm only familiar with one property exclusively shared by 6 and 28 below 100, it wasn't too hard to make the leap and deduce that that was the property unifying the sequence. Had I bothered to calculate the next term, that would have taken far more time than recognising the sequence did. Had I attempted to prove that that was the next term, I'd probably still be working at it unless I either delegated much of the work to a computer, or got hit by an insight that escaped me last time I tackled the problem (over a decade ago) IP Logged Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------  - easy => medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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