GF180 RCX values

[vijayank88]

As per gf180 techlef the RC values in gf180mcu_fd_sc_mcu7t5v0.tlef

CAPACITANCE CPERSQDIST 0.0000394 ;
    RESISTANCE RPERSQ 0.090000 ;

I just want to understand LUT gf180mcuC/libs.tech/openlane/rules.openrcx.gf180mcuC.nom.magic of RCX used for signoff timing.

Metal 1 RESOVER 0
DIST count 55 width 0.23
0 0 0 0.000395257
0 0.33 0 0.000395257

What values considered for each index given in LUT?

Thanks in advance @RTimothyEdwards