Guy Sohier's "Les Eurobillets" site

[MDeen]

same with N022. there are several numbers that should belong to N024, like ND**40 up to ND**48

There is definitely a logic there, but I can't put it in a logic function. Maybe someone good with ChatGPT or Claude can find it.
8th and 9th digit 00, 01, 02, 50, 51, 52 is prone to be N022:

ND**xxxx02..ND**yyyy02 is N022 for xxxx=4001 and yyyy=4059
ND**xxxx01..ND**yyyy01 is N022 for xxxx=4060 and yyyy=4079
ND**xxxx02..ND**yyyy02 is N022 for xxxx=4060 and yyyy=4079
ND**xxxx50..ND**yyyy50 is N022 for xxxx=4060 and yyyy=4079
ND**xxxx00..ND**yyyy00 is N022 for xxxx=4080 and yyyy=4138
ND**xxxx01..ND**yyyy01 is N022 for xxxx=4080 and yyyy=4138
ND**xxxx02..ND**yyyy02 is N022 for xxxx=4080 and yyyy=4138
ND**xxxx51..ND**yyyy51 is N022 for xxxx=4080 and yyyy=4138
ND**xxxx00..ND**yyyy00 is N022 for xxxx=4140 and yyyy=4159
ND**xxxx01..ND**yyyy01 is N022 for xxxx=4140 and yyyy=4159
ND**xxxx51..ND**yyyy51 is N022 for xxxx=4140 and yyyy=4159
ND**xxxx00..ND**yyyy00 is N022 for xxxx=4160 and yyyy=4189
ND**xxxx02..ND**yyyy02 is N022 for xxxx=4160 and yyyy=4189
ND**xxxx01..ND**yyyy01 is N022 for xxxx=4190 and yyyy=4269 (66% is)
ND**xxxx00..ND**yyyy00 is N022 for xxxx=4270 and yyyy=4299
ND**xxxx00..ND**yyyy00 is N022 for xxxx=4300 and yyyy=4348
ND**xxxx01..ND**yyyy01 is N022 for xxxx=4300 and yyyy=4348
ND**xxxx00..ND**yyyy00 is N022 for xxxx=4351 and yyyy=4408
ND**xxxx01..ND**yyyy01 is N022 for xxxx=4351 and yyyy=4429
ND**xxxx02..ND**yyyy02 is N022 for xxxx=4351 and yyyy=4429

The list goes on but it is tedious work. And you can't be sure there are no errors in them, notes that have been entered as N022 that should be N024 or vice versa. I would really like to have access to the ebt database to do more research.
Or maybe I should organise the data differently so it will more sense.

[MDeen]

Don't know if this makes sense to anyone, on the vertical axis it is the ND**xxxx, on the horizontal it is the 8th and 9th digit and in the grid is the percentage of notes of that combination that is N022 (for instance ND**40102 is all N022).

There is correlation, but I don't see a function.

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