Position of n-th 0 in A031298.

Terms

a(0) =0a(1) =10a(2) =30a(3) =50a(4) =70a(5) =90a(6) =110a(7) =130a(8) =150a(9) =170a(10) =190a(11) =191a(12) =194a(13) =197a(14) =200a(15) =203a(16) =206a(17) =209a(18) =212a(19) =215a(20) =218a(21) =220a(22) =250a(23) =280a(24) =310a(25) =340a(26) =370a(27) =400a(28) =430a(29) =460