# A133316 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 8 4 54 5 544 6 7508 7 133704 8 2943194 9 77589536 10 2391477804 11 84582890704 12 3382005372970 13 151034046369696 14 7458091839548356 15 403808650013237224 16 23801728042233670770 17 1517930142778063770304 18 104179592763803229618620