# A129329 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 1 4 12 5 120 6 1140 7 10815 8 104496 9 1037484 10 10627560 11 112508550 12 1231481460 13 13933510734 14 162864103584 15 1965078765195 16 24453461392080 17 313549334233440 18 4138796594051568 19 56188737057169593 20 783876449182595400