# A092810 (b-file synthesized from sequence entry) 0 1 1 6 2 54 3 486 4 4374 5 39366 6 354294 7 3188646 8 28697814 9 258280326 10 2324522934 11 20920706406 12 188286357654 13 1694577218886 14 15251194969974 15 137260754729766 16 1235346792567894 17 11118121133111046 18 100063090197999414 19 900567811781994726 20 8105110306037952534