# A303952 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 17 4 69 5 302 6 1367 7 6302 8 29401 9 138356 10 655425 11 3121439 12 14930541 13 71675840 14 345148893 15 1666432817 16 8064278289 17 39103576700 18 189949958333 19 924163714217 20 4502711570989 21 21966152501240 22 107284324830303