24414062500
domain: N
Appears in sequences
- a(0) = 1; a(n) = 4*5^(n-1) for n >= 1.at n=15A005054
- a(1)=5. For n > 1, a(n) = 4*5^(n-1) = A005054(n).at n=14A110595
- Number of palindromes of length n (in base 5).at n=28A117857
- Number of palindromes of length n (in base 5).at n=29A117857
- a(1)=1, a(n) = (p-1)*a(n-1), if n is even, otherwise a(n) = p*a(n-2), where p = 5.at n=29A133632
- a(n) = 5*a(n-2) for n > 2; a(1) = 4, a(2) = 5.at n=28A163141
- a(n) = denominators of n!/10^n.at n=17A240534
- Hypotenuses for which there exist exactly 14 distinct integer triangles.at n=3A290502