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Table 3

Environmental properties of different types of AGN in the luminosity-density field of the main sample of galaxies at distances from 225 h-1 Mpc to 565 h-1 Mpc.

Type N Average density Void (%) Filament (%) Supercluster (%)

Radio-quiet quasars 411 1.52 ± 0.05 30 59 11
Seyfert 1 galaxies 625 1.58 ± 0.04 26 62 12
Seyfert 2 galaxies 1701 1.51 ± 0.02 28 60 11
BL Lac objects 17 1.9 ± 0.3 12 65 24
Flat-spectrum radio galaxies 189 1.81 ± 0.06 11 72 17
FR I radio galaxies 174 1.89 ± 0.07 14 66 20

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