Positions of zeros in A163897.

Terms

a(0) =0a(1) =1a(2) =7a(3) =8a(4) =9a(5) =15a(6) =16a(7) =22a(8) =23a(9) =24a(10) =25a(11) =53a(12) =67a(13) =78a(14) =81a(15) =91a(16) =105a(17) =156a(18) =497a(19) =1126a(20) =1472a(21) =3560a(22) =3620a(23) =23381a(24) =30206a(25) =30688a(26) =30776a(27) =30982a(28) =51700a(29) =52831