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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.)