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    \$\begingroup\$ "your code may fail due to integer overflow errors. If this is the case, please provide a version which works for arbitrary input size" - What do you mean by this? Does it mean, for instance, that if I answer in R (or any other general-purpose language which will error due to integer overflow eventually), I need to provide a second, independent, program that somehow avoids this effect? One obvious way to do this would be to import arbitrary-precision libraries, but then I will be changing the 'language' to R+gmp... \$\endgroup\$ Commented Jun 29, 2021 at 7:17
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    \$\begingroup\$ "If you do this forever, TSIJMU is the sequence of integers that are added, stati. This goes 2,3,5,6,8, " Up until that point you described adding fractions. Where do the integers in that sequence come from? \$\endgroup\$ Commented Jun 29, 2021 at 7:27
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    \$\begingroup\$ Ok - I've added a non-overflowing version using arbitrary-precision GMP library, but it's a funny requirement, because (a) this avoids floating-point errors already, so I probably would have written the function differently from the outset if I wanted to use it, and (b) I can imagine there may be some other languages for which arbitrary-precision arithmetic or unlimited integers are not implemented, and if so it seems a shame to insist on this... \$\endgroup\$ Commented Jun 29, 2021 at 9:25
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    \$\begingroup\$ @Anush I assume it should read "TSIJMU is the sequence of integers whose inverses are added". \$\endgroup\$ Commented Jun 29, 2021 at 19:35
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    \$\begingroup\$ Might be a worthy submission to the OEIS, they don't seem to have it currently... \$\endgroup\$ Commented Jun 29, 2021 at 20:51