107355domain: NAppears in sequencesNumber of noncaterpillar trees on n nodes (A000055-A005418).at n=17A052471a(n) = coefficient of x^n in the n-th iteration (n-fold self-composition) of the g.f. of squares (A000290).at n=4A302356Numbers k such that 5*10^k + 11 is prime.at n=13A309774