Position of n-th 0 in A030386.

Terms

a(0) =0a(1) =4a(2) =12a(3) =20a(4) =28a(5) =29a(6) =32a(7) =35a(8) =38a(9) =40a(10) =52a(11) =64a(12) =76a(13) =77a(14) =80a(15) =83a(16) =86a(17) =88a(18) =100a(19) =112a(20) =124a(21) =125a(22) =128a(23) =131a(24) =134a(25) =136a(26) =148a(27) =160a(28) =172a(29) =173