Least inverse of A056796.

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =5a(5) =11a(6) =17a(7) =23a(8) =35a(9) =70a(10) =71a(11) =143a(12) =215a(13) =430a(14) =431a(15) =863a(16) =2158a(17) =2159a(18) =4319a(19) =6479a(20) =8639a(21) =12959a(22) =25918a(23) =25919a(24) =51839a(25) =77759a(26) =155518a(27) =155519a(28) =311039a(29) =466559