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A076022 Position of 2n in A073662. 1
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, 27, 32, 40, 30, 35, 28, 24, 34, 29, 39, 37, 41, 44, 33, 45, 36, 50, 42, 38, 65, 43, 46, 51, 47, 57, 52, 48, 54, 63, 55, 62, 58, 56, 49, 53, 60, 66, 64, 67, 59, 74, 68, 73, 71, 61, 70 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..72.

FORMULA

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

EXAMPLE

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,

CROSSREFS

Cf. A073662, A073664, A076023.

Sequence in context: A095303 A060734 A075594 * A064421 A051494 A262025

Adjacent sequences:  A076019 A076020 A076021 * A076023 A076024 A076025

KEYWORD

easy,nonn

AUTHOR

Zak Seidov, Sep 30 2002

STATUS

approved

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Last modified July 8 07:34 EDT 2020. Contains 335513 sequences. (Running on oeis4.)