# A333090 (b-file synthesized from sequence entry) 0 1 1 3 2 21 3 183 4 1729 5 17003 6 171237 7 1752047 8 18130433 9 189218451 10 1987916021 11 20996253479 12 222730436161 13 2371369720827 14 25325636818629 15 271189884041183 16 2910628489408513 17 31302328583021091 18 337241582882175189 19 3639109029230457751 20 39324814984207649729