OEIS_formula: OEIS sequence formula lines from sequence 'internal_format'
In EnriquePH/OEIS.R: Data from the on-Line Encyclopedia of Integer Sequences in R

OEIS_formula

R Documentation

OEIS sequence formula lines from sequence `internal_format`

Description

These lines give formulae, recurrences, generating functions, etc. for the sequence. a(n) usually denotes the n-th term of the sequence, and n is a typical subscript.

Usage

OEIS_formula(x)

Arguments

x

Can be one of the following:

A character string with sequence ID.
A OEIS_internal S3 class object, with sequence internal format.
A S3 classes object OEIS_xml and xml_document, with sequence content from OEIS web.
An object of OEIS_sequence class, that contains all sequence related data.

Value

A character string with the OEIS sequence formula lines or NULL if there are no formulae.

References

https://oeis.org/FAQ.html#Z08

Examples

## Not run: 
id <- "A105805"
internal_format <- OEIS_internal_format(id)
formula <- OEIS_formula(internal_format)
cat(formula, sep = "\n")

## End(Not run)

EnriquePH/OEIS.R documentation built on March 15, 2023, 8:01 a.m.