If the interval followed a sequence of prime numbers, factorials, or exponentials, this could be the only explanation and every astronomer would lose their mind

If the interval followed a sequence of prime numbers, factorials, or exponentials, this could be the only explanation and every astronomer would lose their mind, even more because it's 15K light years away, so there's no way to send a probe to it. As of now, the signal is ambiguous enough to let them keep their minds unblown.