# A161805 (b-file synthesized from sequence entry) 0 1 1 12 2 66 3 255 4 903 5 2970 6 8571 7 23001 8 59763 9 145164 10 333693 11 751059 12 1623009 13 3363576 14 6872307 15 13677228 16 26351985 17 50309910 18 94392525 19 172538934 20 313558506 21 563064207 22 988996095 23 1730456433 24 3001805067 25 5106353439