Position of n-th 2 in A031076.

Terms

a(0) =2a(1) =14a(2) =27a(3) =29a(4) =31a(5) =32a(6) =33a(7) =35a(8) =37a(9) =39a(10) =41a(11) =43a(12) =50a(13) =68a(14) =86a(15) =104a(16) =122a(17) =140a(18) =161a(19) =188a(20) =208a(21) =211a(22) =214a(23) =215a(24) =217a(25) =220a(26) =223a(27) =226a(28) =229a(29) =232