api: revamp subsampling factors to avoid duplicates #7766

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	54m 24s
pytest-ubuntu-py311-gcc11-noomp-adjoint	39m 23s
pytest-ubuntu-py312-gcc12-omp-base	1h 10m 55s
pytest-ubuntu-py312-gcc12-omp-adjoint	50m 36s
pytest-ubuntu-py39-gcc7-omp-base	55m 33s
pytest-ubuntu-py39-gcc7-omp-adjoint	39m 31s
pytest-ubuntu-py310-gcc10-noomp-base	54m 7s
pytest-ubuntu-py310-gcc10-noomp-adjoint	39m 26s
pytest-ubuntu-py312-gcc13-omp-base	1h 10m 53s
pytest-ubuntu-py312-gcc13-omp-adjoint	50m 33s
pytest-ubuntu-py39-gcc9-omp-base	56m 20s
pytest-ubuntu-py39-gcc9-omp-adjoint	39m 40s
pytest-osx-py312-clang-omp-base	34m 48s
pytest-docker-py39-gcc-omp-base	50m 12s
pytest-docker-py39-gcc-omp-adjoint	36m 55s
pytest-docker-py39-icx-omp-base	48m 27s
pytest-docker-py39-icx-omp-adjoint	43m 33s
	13h 55m 16s

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