314413

Appears in sequences

• Palindromes formed from the concatenation of n, sum of n and R(n), and R(n) with its leading zeros; or 0 if no such palindrome exists. R(k) is the digit reversal of k.at n=30A084998
• Palindromes formed from the reflected decimal expansion of Pi.at n=5A135697
• a(n) = Sum_{k=0..floor((2*n+1)/5)} binomial(2*k+1,2*n-5*k+1).at n=29A392487
• Expansion of 1 / ((1-x)^5 - x^7).at n=19A392546