# A009814 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 3 4 -12 5 -163 6 -1178 7 -4529 8 27496 9 870169 10 11481482 11 85659387 12 -308661540 13 -25105525963 14 -525814629650 15 -6328753571321 16 -1529929548080 17 2300980143865777 18 71594692481521682 19 1258339660640728947