# A108734 (b-file synthesized from sequence entry) 0 1 1 12 2 -72 3 864 4 -12960 5 217728 6 -3919104 7 73903104 8 -1441110528 9 28822210560 10 -587973095424 11 12187078705152 12 -255928652808192 13 5433562167312384 14 -116433475013836800 15 2514963060298874880 16 -54700446561500528640 17 1196974477698717450240 18 -26333438509371783905280 19 582107588101902591590400