Replace the word A214317(n) with its position in A007931.

Terms

a(0) =1a(1) =4a(2) =9a(3) =19a(4) =40a(5) =81a(6) =164a(7) =329a(8) =659a(9) =1320a(10) =2641a(11) =5283a(12) =10568a(13) =21137a(14) =42276a(15) =84553a(16) =169107a(17) =338216a(18) =676433a(19) =1352868a(20) =2705737a(21) =5411475a(22) =10822952a(23) =21645905a(24) =43291811a(25) =86583624a(26) =173167249a(27) =346334500a(28) =692669001a(29) =1385338003