import type { SequenceDefinition } from '.';
/**
 * Checks if a number is a perfect power and returns the base and exponent if it is.
 * A perfect power is a number that can be expressed as an integer power of another integer.
 *
 * @param n - The number to check
 * @returns [base, exponent] if n is a perfect power, null otherwise
 */
export declare function perfectPower(n: number): [number, number] | null;
export declare const perfectPowerSequence: SequenceDefinition<'perfect-power'>;