# A012759 (b-file synthesized from sequence entry) 0 0 1 1 2 -1 3 3 4 0 5 -57 6 405 7 -1827 8 -4424 9 223541 10 -2901285 11 19263167 12 121524216 13 -6372341445 14 112206095729 15 -915357416711 16 -12418256340720 17 674275623382473 18 -14438518400518281 19 129951850481453275