Engel expansion of Pi.

Terms

a(0) =1a(1) =1a(2) =1a(3) =8a(4) =8a(5) =17a(6) =19a(7) =300a(8) =1991a(9) =2492a(10) =7236a(11) =10586a(12) =34588a(13) =63403a(14) =70637a(15) =1236467a(16) =5417668a(17) =5515697a(18) =5633167a(19) =7458122a(20) =9637848a(21) =9805775a(22) =41840855a(23) =58408380a(24) =213130873a(25) =424342175a(26) =2366457522a(27) =4109464489a(28) =21846713216a(29) =27803071890