# A005723 (b-file synthesized from sequence entry) 1 1 2 12 3 155 4 2128 5 30276 6 440484 7 6506786 8 97181760 9 1463609356 10 22187304112 11 338118529539 12 5175023913008 13 79492847013100 14 1224838471521240 15 18922450356489780 16 293003808610433280 17 4546150487318508156 18 70662280030419277200 19 1100069396653853657564