# A215583 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 3 4 0 5 -20 6 90 7 203 8 -3360 9 3480 10 123480 11 -691317 12 -4660920 13 67346500 14 84564480 15 -6373324357 16 19974165120 17 628445064240 18 -5371928458560 19 -62241266791917 20 1104961392178560 21 5221640648959900 22 -225150453590240640 23 18981681539957003 24 48136732573773993600