122821domain: NAppears in sequencesDiscriminants of totally real quintic fields.at n=12A023683Numbers k such that 153*2^k+1 is prime.at n=26A032453a(n) is the number of integers whose sum of divisors is 6^n.at n=25A048253Series expansion for end-to-end distance of self-avoiding walks on the triangular lattice.at n=6A121791