Example of the growth of the number of generic absent words and minimal absent words as a function of word size, n. Plots of the number of generic absent words and minimal absent words for the case of the M. genitalium organism. It can be seen that the number of minimal absent words grows until a maximum and then decreases towards zero. On the contrary, the number of generic absent words grows exponentially. For comparison, we also included the graphic of the function 4n. This behavior has also been observed in the other sequences.