# A105227 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 12 4 60 5 355 6 2380 7 17430 8 134190 9 1027656 10 6922146 11 21248073 12 -601744143 13 -20802115620 14 -480211746300 15 -9737801866650 16 -183103121602830 17 -3185750996194910 18 -48580593174777092 19 -515943195216679230 20 3196232280583478136 21 460669417734237239892