# A171212 (b-file synthesized from sequence entry) 0 1 1 2 2 16 3 320 4 12928 5 985088 6 140861440 7 38451150848 8 20403322617856 9 21307854867660800 10 44110759073910095872 11 181739941085108158595072 12 1493546441998961207249207296 13 24512116566896662943648857456640