Strange entries in OSPF LSADB

[1 Игорь]

Hi! I'm use OSPF network statement 
networks {
    10.32.0.0/12;
}
And when I look at
   show ospf lsadb
I see entry
0003  10.47.255.255   10.0.0.0          237  80000001    809e
I discover, that for some networks LSADB entries looks strange:
In bird.conf:
networks {
  10.32.0.0/12;
  10.48.0.0/12;
  10.64.0.0/12;
  10.80.0.0/12;
  10.96.0.0/12;
  10.112.0.0/12;
  10.128.0.0/12;
  10.144.0.0/12;
  10.160.0.0/12;
  10.176.0.0/12;
  10.192.0.0/12;
  10.208.0.0/12;
  10.224.0.0/12;
  10.240.0.0/12;

};

bird> show ospf lsadb

 0001  10.0.0.0        10.0.0.0          174  8000011b    43b4
 0003  10.47.255.255   10.0.0.0          237  80000001    809e
 0003  10.48.0.0       10.0.0.0           68  80000001    74a9
 0003  10.79.255.255   10.0.0.0           62  80000001    feff
 0003  10.80.0.0       10.0.0.0           62  80000001    f20b
 0003  10.111.255.255  10.0.0.0           56  80000001    7d61
 0003  10.112.0.0      10.0.0.0           50  80000001    716c
 0003  10.143.255.255  10.0.0.0           44  80000001    fbc2
 0003  10.144.0.0      10.0.0.0           44  80000001    efcd
 0003  10.175.255.255  10.0.0.0           38  80000001    7a24
 0003  10.176.0.0      10.0.0.0           32  80000001    6e2f
 0003  10.207.255.255  10.0.0.0           26  80000001    f885
 0003  10.208.0.0      10.0.0.0           20  80000001    ec90
 0003  10.239.255.255  10.0.0.0           20  80000001    77e6
 0003  10.240.0.0      10.0.0.0           14  80000001    6bf1
 
Is it normal?