The sample values of A104103=ceil(sqrt(nthprime)) don't seem to agree with its description. I would make four "9"s for ceil(sqrt()) of the primes 67,71,73,79 between 64 and 81, but the samples show just three "9"s. Or are the values something else? But A145445 and A145447 refer to A104103 apparently intending ceil(sqrt()).