# A353911 (b-file synthesized from sequence entry) 1 1 2 -2 3 2 4 -32 5 56 6 -416 7 3184 8 -85504 9 309760 10 -4087552 11 48104704 12 -546922496 13 10591523840 14 -194387924992 15 3133776259072 16 -129880886411264 17 1249919350046720 18 -29073986250604544 19 624022403933077504 20 -15137719350365519872 21 381632216575339397120 22 -11149155036737662615552