80756domain: NAppears in sequencesRevert transform of (1 + x - 2x^2 + x^3)/(1 + 2x).at n=13A049144Numbers m such that 72*m + 1, 576*m + 1, 648*m + 1, 1296*m + 1, and 2592*m + 1 are all primes.at n=18A372187