[seqfan] Yet another way to scramble the integers

Christian G.Bower bowerc at usa.net
Thu Dec 16 08:35:50 CET 1999


Antti Karttunen <karttu at walrus.megabaud.fi> wrote:

> Some time ago I was collecting such rearrangements to "See also:" fields 
> of A000027 (Natural numbers), and A001477 (Nonnegative integers),
> where I have added A048647, A048673,
> and A048672, A048673, A048680, A003188, the last one which
> is the sequence for Gray Code representation of n.

> Now that Neil has started collecting index entries,
> why not add an index entry "permutations/rearrangements of integers",
> to which we can immediately add A035513 (Wythoff Array)
> and A032447 (inverse function of phi), and probably many
> more inverse functions.

If you want to add another index entry, the best thing you can do
is write it youself and send it to Neil.

You can create something like:

permutations of the integers, <a NAME="IntegerPermutation">(start):</a>
permutations of the integers, A048647, A048673, A048672, A048673, A048680
etc.

Here are a couple I remember
A035312 and its inverse A035358.

Christian


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