# A084209 (b-file synthesized from sequence entry) 0 1 1 1 2 -3 3 15 4 -85 5 523 6 -3367 7 22371 8 -152104 9 1052568 10 -7385756 11 52410754 12 -375382683 13 2709626768 14 -19688989762 15 143885743077 16 -1056748051734 17 7795106129504 18 -57723430872280 19 428923406694402