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 A214318 Replace the word A214317(n) with its position in A007931. 4
 1, 4, 9, 19, 40, 81, 164, 329, 659, 1320, 2641, 5283, 10568, 21137, 42276, 84553, 169107, 338216, 676433, 1352868, 2705737, 5411475, 10822952, 21645905, 43291811, 86583624, 173167249, 346334500, 692669001, 1385338003, 2770676008, 5541352017, 11082704035 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Alois P. Heinz, Table of n, a(n) for n = 1..1000 FORMULA a(n) = A182028(n-1)+2^n-1. a(n) = 2*a(n-1) + A003842(n-1) for n>1, a(1) = 1. - Alois P. Heinz, Jul 19 2012 EXAMPLE A214317(5) = 12112 is the 40th term of A007931, so a(5)=40. MAPLE S:= proc(n) option remember;       `if`(n<2, [2-n], [S(n-1)[], S(n-2)[]])     end: a:= proc(n) option remember; local k;       for k while nops(S(k))

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Last modified August 13 05:41 EDT 2020. Contains 336442 sequences. (Running on oeis4.)