FORMAT FOR INDEX

[N. J. A. Sloane]

Christian asks what format would be best for contributions to the index file.

Here is the sort of thing that would be most helpful.

Let me illustrate with the topic "factorial numbers", which i 
did myself the other day.

You pick a topic that interests you, "factorial numbers" (say)

There will be one or more main sequences, which go on a line by themselves, with
a star:

factorial numbers n!: A000142*

then there are secondary sequences of various types that have names,
such as:

factorial numbers, differences of: A001564 A001565 A001688 A001689 A023043 A023044 A023045 A023046 A023047

(in numerical order, separated by commas or spaces)

factorial numbers, divisibility of: A011776, A011777, A011778

factorial numbers, double: A000165*, A001147*, A006882*
factorial numbers, double: see also A007919, A007922, A019513, A045766

if there are more than a dozen for a subtopic, break them up like this:

factorial numbers, q-factorials (1): A015001 A015002 A015004 A015005 A015006 A015007 A015008 A015009 A01501
1 A015013 A015015 A015017
factorial numbers, q-factorials (2): A015018 A015019 A015020 A015022 A015023 A015025 A015026 A015027 A01502
8


then there are probably a bunch that belong under this general heading, but
don't fit into any specific sub-category, and these i lump
together like this:

factorial numbers: see also (01): A000966 A001048 A001272 A001710 A001715 A001720 A001725 A001730 A001804 A
002301 A002981 A002982
factorial numbers: see also (02): A003135 A004664 A005008 A005095 A005096 A005165 A005212 A005359 A006472 A
006993 A007339 A007611
factorial numbers: see also (03): A007749 A010790 A010791 A010792 A010793 A010794 A010795 A010796 A010797 A
010798 A010799 A010800
factorial numbers: see also (04): A024168 A033187 A033932 A033933 A034860 A034865 A034866 A034878 A036603 A
037082 A037083 A038154 A038156
factorial numbers: see also (05): A038157 A038507 A045647 A048742 A049432 A049433 A049614


and finally there may be cross-references to other parts of the index, like this:

factorial numbers: see also central factorial numbers


-------
i would be happy to send the current index to anyone who would like it.
It is only about 2000 lines of plain ascii.

This is not what you see on the web.
[what you see on the web site in the index files
http://www.research.att.com/~njas/sequences/Sindx.html
http://www.research.att.com/~njas/sequences/SindxA.html etc,
is produced by a shell program from the 
"raw table".  i would send you the raw table itself,
which as i said is quite small.
What i am looking for is new material for the "raw table"]


Neil Sloane