[seqfan] Re: A063841

[franktaw at netscape.net]

Programs do not by any means always generate a sequence per se. I tend 
to modify the program name to show what it is calculating: a(n) for 
direct calculation of the nth term; al(n) for calculation of the first 
n terms; alim(n) for all terms with values up to n; isa(n) for whether 
a given term is in the sequence; am(n) to return an nxn matrix; ap(n) 
for a program that just prints values up to n; ar(n) to generate the 
nth row; ac(n,k) to generate k terms of the nth column; T(n,k) to 
compute a term in a matrix. All of these are valid programs for 
appropriate sequences.

Franklin T. Adams-Watters

-----Original Message-----
From: Harvey P. Dale <hpd1 at nyu.edu>

	The program provided by Geoffrey Critzer doesn't generate the terms of 
the aboe
sequence.  First, it needs to invoke the Combinatorica package before 
it is run.
Second, it then generates a grid but not the terms of the sequence 
(because the
terms of the sequence require reading the grid by anti-diagonals).  How 
should
the program be fixed?
	Best,
	Harvey