appendValue(value, repetitions = 1) {
    if (repetitions <= 0) return
    if (typeof value === "number") {
      super.appendValue(value - this.absoluteValue, 1)
      this.absoluteValue = value
      if (repetitions > 1) super.appendValue(0, repetitions - 1)
    } else {
      super.appendValue(value, repetitions)
    }
  }
Appends a new integer value to the sequence. If `repetitions` is given, the value is repeated
`repetitions` times.