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 A330588 a(n) is the first index m such that A330439(m) = n. 2
 0, 3, 6, 13, 21, 23, 27, 33, 46, 67, 81, 104, 107, 114, 129, 166, 169, 172, 193, 261, 267, 276, 287, 311, 373, 430, 457, 478, 485, 590, 596, 656, 691, 768, 789, 796, 873, 941, 969, 1047, 1093, 1149, 1170, 1239, 1303, 1349, 1491, 1533, 1555, 1567, 1805, 1808 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Alois P. Heinz, Table of n, a(n) for n = 1..16000 MAPLE b:= proc() 0 end: g:= proc(n) option remember; local t;       t:= `if`(n<2, n, b(g(n-1))+b(g(n-2)));       b(t):= b(t)+1; t     end: f:= proc(n) option remember; b(g(n)) end: a:= proc() local l, t; t, l:= -1, proc() -1 end;       proc(k) local h;         while l(k)<0 do t:= t+1; h:= f(t);           if l(h)<0 then l(h):= t fi         od: l(k)       end     end(): seq(a(n), n=1..60); CROSSREFS Row n=1 of A330587. Cf. A316774, A330439. Sequence in context: A318228 A064290 A064621 * A194279 A293822 A180750 Adjacent sequences:  A330585 A330586 A330587 * A330589 A330590 A330591 KEYWORD nonn AUTHOR Alois P. Heinz, Dec 18 2019 STATUS approved

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Last modified August 7 19:57 EDT 2020. Contains 336279 sequences. (Running on oeis4.)