# A145219 (b-file synthesized from sequence entry) 1 1 2 0 3 0 4 8 5 15 6 144 7 910 8 7440 9 66717 10 667520 11 7342236 12 88107480 13 1145396395 14 16035550608 15 240533257770 16 3848532125984 17 65425046139705 18 1177650830517120 19 22375365779822392 20 447507315596451240 21 9397653627525472071 22 206748379805560390160 23 4755212735527888968390