56165

Appears in sequences

• a(n) = (6*n+1)*(6*n+5).at n=39A001513
• a(n) = Sum_{k=1..n} k*[ (n/k)*[ (n/k)*[ n/k ] ] ].at n=32A024933
• Palindromes of form k*(k+4).at n=8A028556
• Palindromes of the form 4n + 1 where n is also a palindrome. Palindromes arising in A083831.at n=13A083832
• a(n) = (8*n+3)*(8*n+7).at n=29A146301
• a(n) = Sum_{k=0..floor(n/4)} (n-3*k)!/(n-4*k)!.at n=25A357533