Correction to, comment on, A061789, and primes therein

[Jonathan Post]

I've verified, using Alpertron, and double-checking with the WIMS
server at U.Nice, that there are no more primes in A061789 through
a(78):

2^2 + 3^3 + 5^5 + 7^7 + ... + 397^397

which has 1032 digits.

hence, if there is a 4th prime in A061789 it must be a Titanic prime,
to use the term coined by Samuel Yates in the 1980s, denoting a prime
number of at least 1000 decimal digits.