Index of first occurrence of n in A154404.

Terms

a(0) =1a(1) =5a(2) =6a(3) =7a(4) =12a(5) =9a(6) =13a(7) =17a(8) =22a(9) =20a(10) =26a(11) =56a(12) =50a(13) =46a(14) =74a(15) =106a(16) =76a(17) =152a(18) =116a(19) =242a(20) =206a(21) =284a(22) =623a(23) =1056a(24) =1032a(25) =1582a(26) =1586a(27) =1616a(28) =1892a(29) =1676