4882812500

Appears in sequences

• a(0) = 1; a(n) = 4*5^(n-1) for n >= 1.at n=14A005054
• a(n) = 5*a(n-2), starting 1,2,4.at n=28A026395
• a(1)=5. For n > 1, a(n) = 4*5^(n-1) = A005054(n).at n=13A110595
• Number of palindromes of length n (in base 5).at n=26A117857
• Number of palindromes of length n (in base 5).at n=27A117857
• 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=27A133632
• a(n) = 5*a(n-2) for n > 2; a(1) = 4, a(2) = 5.at n=26A163141
• a(n) = phi(n^7).at n=24A239442