# A136794 (b-file synthesized from sequence entry) 1 2 2 8 3 52 4 376 5 2998 6 25256 7 222128 8 2013680 9 18691522 10 176743160 11 1696546848 12 16488151400 13 161919802562 14 1604274741608 15 16016845623764 16 160977882238968 17 1627406260427490 18 16537733701226936