# A066316 (b-file synthesized from sequence entry) 4 1 5 5 6 24 7 91 8 340 9 1224 10 4365 11 15521 12 55311 13 197964 14 712243 15 2577105 16 9375360 17 34284971 18 125977464 19 464938189 20 1722817415 21 6407307543 22 23909159417 23 89491715105 24 335908316844 25 1264097675775 26 4768430557020 27 18027183349395