# A083800 (b-file synthesized from sequence entry) 1 0 2 1 3 5 4 13 5 23 6 47 7 59 8 59 9 839 10 1679 11 2519 12 15119 13 27719 14 138599 15 360359 16 360359 17 720719 18 8648639 19 12252239 20 208288079 21 232792559 22 232792559 23 232792559 24 2327925599 25 5354228879 26 16062686639 27 26771144399 28 26771144399 29 80313433199 30 1204701497999 31 2329089562799 32 16303626939599 33 144403552893599