# A368232 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 38 4 272 5 2444 6 26306 7 330588 8 4746360 9 76675584 10 1376187072 11 27171073632 12 585216675600 13 13655030234208 14 343124183767920 15 9237920561327904 16 265292717180631552 17 8094790891854169344 18 261522698597072168832 19 8918551194519088836864