145541

Appears in sequences

• Palindromes of form n^2 + 3*n + 1.at n=14A028349
• Palindromes with exactly 3 palindromic prime factors (counted with multiplicity).at n=25A046377
• Palindromes with exactly 3 distinct palindromic prime factors.at n=10A046409
• a(n) = n^4 + 2*n^3 + 4*n^2 + 3*n + 1 = ((n+1)^5+n^5) / (2*n+1).at n=19A072025
• 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=13A084998
• Sphenic numbers k = p*q*r such that reversal(k) is also a sphenic number and reversal(k) = reversal(p)*reversal(q)*reversal(r).at n=38A242726
• Composite palindromes whose divisors > 1 are all nontrivial palindromes (i.e., palindromes with at least two digits).at n=31A329100