33989

Appears in sequences

• Numbers k such that k^2 contains only digits {1,2,5}.at n=17A031153
• Numbers having four 5's in base 9.at n=6A043476
• Number of diamond polyominoes with n cells.at n=10A056783
• Number of Fermat pseudoprimes to base 7 less than 10^n.at n=10A114249
• Coefficient of x^2 in minimal polynomial of the continued fraction [1^n,sqrt(5),1,1,1,...], where 1^n means n ones.at n=10A266705
• Number of free polyominoes with checkerboard-pattern-colored vertices with n cells.at n=10A361625