The PHP code of these two on-line applications is almost the same than the one of OEIS2BibTeX, but this time changed to provide the help code for PARI/GP or Mathematica OEIS sequences functions.

Both applications can be used in two different ways:

* Entering the Sequence Id number with a HTML form: in a POST METHOD, or

* With the Id Number supplied to the PHP code within the link, using ?sequence=valid_ID

1) PARI/GP

1.1) HTML POST Method:

http://oeis2bibtex.netai.net/helpPARI_GP/

1.2) PHP Parameter:

http://oeis2bibtex.netai.net/helpPARI_GP/OEIS-PARI_GP-Help.php?sequence=A000200

Here you can change A000200 for the desired Sequence Id Number:

2) WOLFRAM MATHEMATICA

2.1) HTML POST Method:

http://oeis2bibtex.netai.net/helpMathematica/

2.2) PHP Parameter:

http://oeis2bibtex.netai.net/helpMathematica/OEIS-Mathematica-Help.php?sequence=A000200

2.3) Mathematica Code using Import

**:**

As Mathematica can access on-line data, these functions can do the job too inside any Mathematica Notebook or Package:

`OEISSequenceDescription[seq_String]:=Module[{dataloaded = StringJoin[Import["http://oeis.org/classic/?q=id%3a" <> seq <> "&fmt=3","Data"]], first, last},`

first = Flatten[StringPosition[dataloaded, "%N"], 1][[2]];

last = Select[StringPosition[dataloaded, "%"][[All, 1]], # > first&][[1]];

StringReplace[StringTake[dataloaded, {first + 10, last - 1}], " " ~~ _ -> ""]]

OEISAddHelp[seq_String]:=ToExpression[StringJoin[seq, "::usage=\"",seq, ": ", OEISSequenceDescription[seq], "\""]]

**Archives:**

[a]-073110-Adding Help to OEIS Sequences.nb

**References:**

[1]-PARI/GP Development Headquarters - Programming in GP: other specific functions-addhelp

[2]-http://formatmysourcecode.blogspot.com/

[3]-Wolfram Mathematica Documentation Center: Import

[4]-E.PĂ©rez Herrero-OEIS Utilities Page@ OEIS Wiki