10 = 119 = 188 = 57 = 86 =125 = 24 = 53 = 62 = 11 = WHAT IS THE
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| Sequence Number??? https://www.calcudoku.org/forum/viewtopic.php?f=24&t=607 |
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| Author: | angel21 |
| Post subject: | Sequence Number??? |
10 = 119 = 188 = 57 = 86 =125 = 24 = 53 = 62 = 11 = WHAT IS THE >> NEXT NUMBER |
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| Author: | firefly |
| Post subject: | Re: Sequence Number??? |
20 then 209 |
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| Author: | angel21 |
| Post subject: | Re: Sequence Number??? |
Can you tell me how you worked it out please |
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| Author: | firefly |
| Post subject: | Re: Sequence Number??? |
Assuming I have it correct, of course. Looking for patterns, I noticed that the last digit of each number was in descending order (0, 9, 8, 7, 6...) Looking at the remainder of each number, I noticed that they had a pattern as well. If the last digit of the number is x, then the first part of the number cycles through x-2, x+2, 2x+2. The only exceptions are where x-2 would fall below 1, in which case they seem to just use 1 instead. So: 0 --> 0-2=-2 (special case) --> 1 & 0 --> 10 9 --> 9+2=11 --> 11 & 9 --> 119 8 --> 2(8)+2=18 --> 18 & 8 --> 188 7 --> 7-2=5 --> 5 & 7 --> 57 6 --> 6+2=8 --> 8 & 6 --> 86 5 --> 2(5)+2=12 --> 12 & 5 --> 125 4 --> 4-2=2 --> 2 & 4 --> 24 3 --> 3+2=5 --> 5 & 3 --> 53 2 --> 2(2)+2=6 --> 6 & 2 --> 62 1 --> 1-2=-1 (special case) --> 1 & 1 --> 11 Therefore: 0 --> 0+2=2 --> 2 & 0 --> 20 9 --> 2(9)+2=20 --> 20 & 9 --> 209 8 --> 8-2=6 --> 6 & 8 --> 68 etc. |
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