122062500

Appears in sequences

• Number of reversible strings with n beads of 5 colors. If more than 1 bead, not palindromic.at n=11A032088
• a(n) = A000217(n^3) - n^3.at n=25A085744
• a(n) = 5^n*(5^n-1)/2.at n=6A162729
• Triangular numbers representable as t*p, where t>1 is a triangular number, p>1 is a prime power (A025475).at n=17A221563