# A228712 (b-file synthesized from sequence entry) 0 1 1 3 2 72 3 2307 4 86295 5 3513477 6 151235361 7 6768437853 8 311788291023 9 14685531568689 10 704028657330720 11 34239755370728001 12 1685178804762196176 13 83776625650642935108 14 4200738946110487797030 15 212201486734654901466543 16 10789009182188638106874636 17 551682346017956870539952958