A062775 / editing needed
Gottfried Helms
helms at uni-kassel.de
Fri Dec 19 16:32:44 CET 2003
Hi Seqfans -
the study of the sequence A062775, which I presented in my
previous mails, uncovered two minor errors in the current
description in OEIS.
---------------------------------
||> ID Number: A062775
||> URL: http://www.research.att.com/projects/OEIS?Anum=A062775
||>
||> Sequence: 1,4,9,24,25,36,49,96,99,100,121,216,169,196,225,448,289,
||> 396,361,600,441,484, 529,864,725,676,891,1176,841,900,961,
||> 1792,1089,1156,1225,2376,1369,1444,1521,2400,1681,1764,1849,
||> 2904,2475,2116,2209,4032,2695,2900
||>
||> Name: Number of Pythagorean triples mod n; i.e. number of
||> non-congruent solutions to x^2 + y^2 = z^2 mod n.
||>
||> Comments: a(n) is multiplicative and for a prime p: a(p) = p^2.
||>
||>The starting number of this series is 1.
Proposals:
a) Field: Name. Replace "non-congruent" by "all"
b) Field: Comment. It is more precise to say:
"a(n) is partially multiplicative
and for square-free integer i: a(i) = i^2"
c) Add my formula for direct computation of A(i) from
its index i. (see previous post; sorry, don't have Maple
of mathematica-syntax available)
What is the best way to proceed? Just send this to OEIS - postbox?
Use the www-based-form? How to add my definition of the g-function
(it is a bit voluminous for the OEIS, I think) ?
Regards -
Gottfried Helms
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