The pattern is (n-1)^2 + (n-2)^2. 0, 1, (1^2+0^2)=1, (1^2+1^2)=2, (2^2+1^2)=5 (Wait, the sequence in question is 0,1,1,2,9). If the pattern is (previous)^2 + (one before)^2: 2^2+1^2=5, not 9. The sequence is likely (n-1)^2 * (n-2) + n, or another complex polynomial. 737 is the intended answer in this specific IQ-style test.