Timeline for 1 rectangle <= 4 squares
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
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| Mar 9, 2010 at 18:39 | comment | added | Yaakov Baruch | @Tony, 1 and 2 by stripping down unnecessary grid points from the known results, and 3 by then trying to extrapolate 1 and 2, overshooting big and stripping down again after (which is what I've been trying towards X4,Y4 without success). The sequence 4,4,4 by the way may be misleading... the 1st set X1 maybe should be regarded as X0={0,A} U X1'={-B+A,B}, which makes the sequence 2,2,4,4 and suggests that X4,Y4 could have 6 or 8 points each, not 4. More far fetched speculation: the sequence 3, 21, 135 looks like 2^2-1, 3*(2^3-1), 9*(2^4-1)... | |
| Mar 9, 2010 at 9:44 | comment | added | TonyK | I can confirm this result. Amazing! How did you find these grids? | |
| Mar 9, 2010 at 8:20 | history | edited | Yaakov Baruch | CC BY-SA 2.5 |
added 12 characters in body
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| Mar 9, 2010 at 1:20 | history | answered | Yaakov Baruch | CC BY-SA 2.5 |