Submit Sequence or Comment to On-Line Encyclopedia of Integer Sequences

Sending in a New Sequence or a Comment on an Existing Sequence to

The On-Line Encyclopedia of Integer Sequences

Please choose one of the following four pages!

1. SubmitN.html: Contributing a new sequence to the OEIS

Use this to send in a sequence that is not at present in the OEIS.
This is for both unnumbered and pre-numbered sequences. Unnumbered sequences will automatically be assigned an A-number.

2. SubmitA.html: Adding to the entry for an existing sequence in the OEIS

Use this to ADD something (more terms, a comment, formula, example, reference, link, program, etc.)
to the existing entry for a sequence.
You can also use it to make corrections to the TERMS of a sequence.

3. SubmitC.html: Making CHANGES to a sequence in the OEIS

Use this page to correct a definition, comment, formula, example, reference, link, program, etc., or to completely edit an entry.
Whenever possible, use the previous page (SubmitA.html) rather than this page. Use this page only if SubmitA.html will not do the job!
(Note: if you have just submitted a new sequence, please wait until it appears in the OEIS before using this page to change it!)

4. Instructions for sending in a b-file for a sequence in the OEIS

If you have more terms than will fit on three lines, you should consider sending them in the form of a b-file.

If your sequence was not in the database and is interesting, please send it to me, and I will (probably) add it!
Reasons for sending in your sequence:

This stakes your claim to it
Your name is immortalized
The next person who stumbles across it will be grateful to you

IMPORTANT: Thousands of people use the sequence database every day.
Please take great care that the terms you send are absolutely correct.
The standards are those of a mathematics reference work.

Include a brief description and if possible enough terms to fill 3 lines on the screen. I need a minimum of 4 terms.

Note that, to be included in the database, the sequence should

consist of integers (though some sequences of fractions have entered by numerator and denominator separately)
be infinite - though there are many exceptions to this rule (even various sequences of subway stops are in the table now)
be interesting

I regret that because of the number of sequences received (an average of over 30 new sequences a day since 1995, or 10000 a year), new sequences cannot be accepted unless they are in the internal format used in the database.

There are 3 ways to put sequences into this format:

(Best) Use the SubmitN.html form.
This will automatically assign a sequence number. There is also a spelling checker.

Use the Maple or Mathematica (see EISFormat.m) formatting scripts provided.

Format the sequences yourself using the information in the help file. There are also all the examples in the database for you to imitate!
If you are planning to submit a series of sequences and would like some A-numbers so you can format them and get the cross-references right, click here!

AT&T Labs Research