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 A076022 Position of 2n in A073662. 1

%I

%S 1,4,2,9,3,8,10,7,5,11,6,15,12,14,20,16,19,13,17,21,18,26,23,25,31,22,

%T 27,32,40,30,35,28,24,34,29,39,37,41,44,33,45,36,50,42,38,65,43,46,51,

%U 47,57,52,48,54,63,55,62,58,56,49,53,60,66,64,67,59,74,68,73,71,61,70

%N Position of 2n in A073662.

%C It is not clear that each even number will appear in A073662, though I've checked it up to 20000.

%F a(n) = position of (2n) in A073662: A073662(a(n)) = 2n.

%e a(1)=4 because 2*1=2 appears at 4th position in A073662, a(14)=14 because 2*14=28 appears at 14th position in A073662,

%Y Cf. A073662, A073664, A076023.

%K easy,nonn

%O 1,2

%A _Zak Seidov_, Sep 30 2002

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Last modified September 27 03:21 EDT 2020. Contains 337380 sequences. (Running on oeis4.)