[seqfan] Re: New sequences from generalized Fibonacci sequence

Frank Adams-Watters franktaw at netscape.net
Sun Nov 9 18:30:03 CET 2014


That follows immediately from the definition of the associative array. 
The second column of the associative array is the indices of the second 
occurrence of n in the sequence a, etc.

Franklin T. Adams-Watters

-----Original Message-----
From: L. Edson Jeffery <lejeffery2 at gmail.com>

>The associative arrays of a and b are transposes of each other and the
first column of the b's associative array, 1, 4, 12, 28, 55, 96, etc.,
seems to be A006000.


Does {1, 4, 12, 28, ...} also give the index of the first occurrence of 
n
in your sequence a, or is it just a coincidence for the first four 
terms?

Ed Jeffery

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