5073705

Appears in sequences

• Palindromic triangular numbers.at n=19A003098
• Palindromic binomial coefficients C(n,k) for k >= 2.at n=28A051641
• Palindromic hexagonal numbers.at n=12A054969
• Triangular numbers whose digit reversal is also a triangular number.at n=37A061455
• Triangular numbers whose reverse is also triangular.at n=25A066569
• a(n) = smaller member of n-th pair of distinct, positive, triangular numbers whose sum and difference are also triangular numbers.at n=32A185129
• Odd palindromes having more divisors than all smaller odd palindromes.at n=13A343735