1073741833domain: NAppears in sequencesPrimes of the form 2^k + 9.at n=10A104070a(n) = n_{2^n}.at n=28A122624Primes of the form 8^k + 9.at n=4A145440a(n) = 2^n + 9.at n=30A188165Primes of the form 4^k + 9.at n=4A228027