Interface IntegerSequence

All Superinterfaces:

Function<Natural,Integer>, Function<Natural,Integer>, Relation<Natural,Integer>, Sequence<Integer>

All Known Implementing Classes:

BellSequence, CatalanSequence, FactorialSequence, FibonacciSequence, PrimePiSequence, PrimeSequence, SquareSequence, TriangularSequence

public interface IntegerSequence
extends Sequence<Integer>

A sequence of integers (ℤ).

Most OEIS sequences are integer sequences. This interface uses Episteme

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Method Summary

Modifier and Type	Method	Description
default long	getLong(int n)	Convenience method for small indices that fit in a long.
default long	getLong(Natural n)	Convenience method to get value as long using Natural index.

Methods inherited from interface Function

compose

Methods inherited from interface Function

andThen, compose, contains, evaluate, getBackend, isContinuous, isDifferentiable, setBackend

Methods inherited from interface Relation

getCodomain

Methods inherited from interface Sequence

apply, evaluate, get, get, getDomain, getFormula, getName, getOEISId

Method Details

getLong

default long getLong(int n)

Convenience method for small indices that fit in a long.

Use this when you know the sequence value will fit in a long. For arbitrary-precision results, use Sequence.get(Natural) or Sequence.get(int).

Parameters:

n - the index

Returns:

a(n) as long

Throws:

ArithmeticException - if the value doesn't fit in a long

getLong

default long getLong(Natural n)

Convenience method to get value as long using Natural index.

Parameters:

n - the index

Returns:

a(n) as long

Throws:

ArithmeticException - if the value doesn't fit in a long