# A370579 (b-file synthesized from sequence entry) 1 1 2 4 3 9 4 52 5 125 6 1806 7 5047 8 87368 9 544329 10 7408810 11 39916811 12 1281329292 13 6227020813 14 174477663374 15 2015997984015 16 45336862771216 17 355687428096017 18 16059446167564818 19 121645100408832019 20 5372665305815808020 21 76707372899469312021 22 2248001765299683993622