Position of n-th 0 in A031111.

Terms

a(0) =15a(1) =19a(2) =46a(3) =52a(4) =66a(5) =69a(6) =77a(7) =102a(8) =105a(9) =115a(10) =117a(11) =118a(12) =134a(13) =146a(14) =151a(15) =153a(16) =156a(17) =171a(18) =172a(19) =181a(20) =183a(21) =191a(22) =197a(23) =206a(24) =222a(25) =239a(26) =246a(27) =250a(28) =261a(29) =264