This program calculates a_5 of OEIS A273525: http://oeis.org/A273525
It reports a_5 = 603919253973.
The sequence was defined by Vladimir Reshetnikov: http://math.stackexchange.com/questions/1797607
This program depends on:
- the TurboPFor repo (included as a submodule)
- the GNU MP library
- GNU g++ or other C++ compiler
Build with:
git submodule update --init --recursive
make
make test
The full computation needs about 90GB of memory and 1000 CPU-hours. The release build (named “-rocket”) has assertions disabled and is slightly faster. Run with -j set to the number of available CPUs.
MIT license, see LICENSE file. Note that TurboPFor uses the GNU GPL.