# A013497 (b-file synthesized from sequence entry) 1 -1 2 1 3 2 4 5 5 -13 6 -63 7 -453 8 1822 9 9683 10 174325 11 -960133 12 -2767796 13 -180618579 14 1333355779 15 -2799332651 16 400791892784 17 -3944083024649 18 32532084129049 19 -1656524167774985 20 21382796711385164 21 -305269868753768647