https://rsat.eead.csic.es/plants/data/genomes/Oryza_sativa.IRGSP-1.0.60/oligo-frequencies/?C=M;O=A
Index of /plants/data/genomes/Oryza_sativa.IRGSP-1.0.60/oligo-frequencies
https://rsat.eead.csic.es/plants/data/genomes/Oryza_sativa.IRGSP-1.0.60/oligo-frequencies/?C=D;O=A
Index of /plants/data/genomes/Oryza_sativa.IRGSP-1.0.60/oligo-frequencies