# A126505 (b-file synthesized from sequence entry) 0 1 1 10 2 70 3 510 4 3720 5 27142 6 198034 7 1444904 8 10542368 9 76919662 10 561224422 11 4094828862 12 29876859864 13 217988781808 14 1590498774316 15 11604663002012 16 84670422615182 17 617775842744470 18 4507441679052256 19 32887382581680414