# A013379 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 1 4 0 5 -15 6 10 7 271 8 -840 9 -7655 10 60870 11 284491 12 -4949780 13 -9609795 14 484684330 15 -382526689 16 -57168678320 17 229639178065 18 7957246947790 19 -65098408980269 20 -1270811040444460 21 17837435546853925