6357828776domain: NAppears in sequencesBase-5 digits are, in order, the first n terms of the periodic sequence with initial period 1,0.at n=14A033115a(n) = n^7 + n^6 + n^5 + n^4 + n^3 + n^2 + n + 1.at n=25A053717Modulo 2 binomial transform of 5^n.at n=14A100308a(n) = (25^n - 1)/24.at n=8A218728