# A165647 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 6 5 9 6 18 7 27 8 58 9 99 10 316 11 936 12 20225 13 410571 14 50745729 15 2993355213 16 1701561156737 17 444491521018441 18 650424404724148930 19 430363737398835017296 20 2886485242642120438501318 21 8838475960755164592843156768 22 152938120727373876718042362054465