# A047946 (b-file synthesized from sequence entry) 0 3 1 2 2 8 3 17 4 48 5 122 6 323 7 842 8 2208 9 5777 10 15128 11 39602 12 103683 13 271442 14 710648 15 1860497 16 4870848 17 12752042 18 33385283 19 87403802 20 228826128 21 599074577 22 1568397608 23 4106118242 24 10749957123 25 28143753122 26 73681302248 27 192900153617 28 505019158608 29 1322157322202