Least number m such that A247600(m) = n.

Terms

a(0) =9a(1) =7a(2) =6a(3) =998a(4) =5a(5) =6331a(6) =15866a(7) =39860a(8) =100135a(9) =251616a(10) =636787a(11) =1617099a(12) =4124188a(13) =10553076a(14) =27066256a(15) =69709243a(16) =179992154a(17) =465769460a(18) =1208198239a(19) =3140421185a(20) =8179001679a(21) =21338684878a(22) =55762147707a(23) =145935688930a(24) =382465571795