279972

Appears in sequences

• Sums of 2 distinct powers of 6.at n=23A038478
• Palindromes with exactly 7 prime factors (counted with multiplicity).at n=23A046333
• Palindromes with exactly 7 palindromic prime factors (counted with multiplicity).at n=1A046381
• a(n) = Sum_{d|7} phi(d)*n^(7/d).at n=6A054606
• a(n) = Sum_{d|n} phi(d)*6^(n/d).at n=7A054613
• Triangle T(n,k) = Sum_{d|n} phi(d)*k^(n/d).at n=26A054618
• Sums of two powers of 6.at n=30A055257
• n sets a new record for the number of integers k such that n = k + reverse(k).at n=38A067035
• Palindromic numbers that set a new record for number of palindromic divisors.at n=16A084324
• 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=26A084998
• a(n) is the least number with n palindromic divisors.at n=31A087997
• Palindromes whose squares belong to A066531.at n=11A117281
• Numbers whose square is the product of a number and its reverse.at n=29A207373
• Triangle read by rows giving numbers B(n,k) arising in the enumeration of doubly rooted tree maps.at n=23A260039
• Solutions to x/SOD(x) = y, where x and y are palindromes, a(n)=x.at n=9A276142
• Smallest palindrome in base 10 whose factorization contains n distinct base 10 palindromic prime factors.at n=5A335934
• a(n) is the least palindrome that has exactly n palindromic divisors other than itself and 1.at n=30A378140