# A058021 (b-file synthesized from sequence entry) 0 -2 1 -2 2 5 3 11 4 59 5 419 6 839 7 2503 8 27701 9 360337 10 720703 11 12252197 12 232792559 13 5354228879 14 26771144371 15 80313433159 16 2329089562799 17 72201776446757 18 144403552893599 19 5342931457063157 20 219060189739591153 21 9419588158802421517 22 442720643463713815199