43382domain: NAppears in sequencesNumber of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 1), (0, 1, 0), (0, 1, 1), (1, 0, -1)}.at n=9A149954Number of primes between n and 2^n exclusive.at n=18A284275G.f.: Product_{m>0} (1+x^m+2!*x^(2*m)).at n=45A293204