37535domain: NAppears in sequencesNumbers whose set of base-13 digits is {1,4}.at n=39A032825a(n) = Sum_{i=0..n} digsum_8(i)^4, where digsum_8(i) = A053829(i).at n=29A231683Numbers k such that k!6 - 8 is prime, where k!6 is the sextuple factorial number (A085158).at n=45A289686