1015625

Appears in sequences

• Numbers of the form q1^b1 * q2^b2 * q3^b3 * q4^b4 * q5^b5 * ... where q1=5, q2=13, q3=17, q4=29, q5=37, ... (A002144) and b1 >= b2 >= b3 >= b4 >= b5 >= ....at n=30A054994
• a(n) = det(M(n)) where M(n) is the n X n matrix defined by m(i,i)=6, m(i,j)=i/j.at n=7A079027
• 5th binomial transform of (1,1,0,0,0,0,.....).at n=8A081105
• Expansion of (1-5x+40x^2)/((1-5x)(1+5x)).at n=8A091105
• Numbers of the form (5^i)*(13^j).at n=30A107466
• a(n) = n^7*(n^2 + 1)/2.at n=5A168636
• a(n) = (n/4)*5^(n/2)*((1+sqrt(5))^2+(-1)^n*(1-sqrt(5))^2).at n=13A187275
• a(n) = 5*a(n-1) - 10*a(n-2), with a(0)=0, a(1)=1.at n=14A190971
• Start with a(0) = 1; thereafter a(n) is obtained from 5*a(n-1) by removing all 7's.at n=10A335506
• Numbers k = p1^e1*p2^e2, with e1 != e2, such that the Euclidean distance between points (p1, e1) and (p2, e2) is an integer.at n=24A387172