Question about Table 9.

[hughxx]

I have a quesiton about Table 9, the first line of Table 9 is as below, how come the number in the barcket?
L 24(24) 48(36) 96(48) 192(60) 336(104) 720(144)

The description of Table 9 is as below, but according to this description, i still can't infer the number.
"Here we provide a full benchmark of quantitative results in Table 9 for varying look-back window in
supervised PatchTST/42 regarding Figure 2 in the main text. Generally speaking, our model gains
performance improvement with increasing look-back window, which show the effectiveness of our
model in learning information from longer receptive field."