# A299855 (b-file synthesized from sequence entry) 0 1 1 6 2 -12 3 60 4 -384 5 2772 6 -21504 7 175032 8 -1474560 9 12748164 10 -112459776 11 1008263880 12 -9160359936 13 84151254600 14 -780341870592 15 7294711613040 16 -68670084612096 17 650409360439140 18 -6193772337561600 19 59267126633699880 20 -569566264641454080 21 5494909312181603160 22 -53198968510406983680 23 516695227418183158800 24 -5033085020810678108160