24142

Appears in sequences

• Palindromic untouchable numbers.at n=35A048187
• Palindromic even squarefree numbers with an even number of distinct prime factors.at n=23A075811
• Palindromic even numbers with exactly 2 prime factors (counted with multiplicity). Equivalently, palindromic numbers of the form 2*p with p prime.at n=17A075813
• Terms of A083393 such that the sum of the factorials of the digits is prime.at n=14A083394
• Palindromes k such that 3k + 1 is also a palindrome.at n=22A083829
• Palindromes n such that 4n + 1 is also a palindrome.at n=20A083831
• Palindromic numbers with property that sum of digits is prime and number of prime digits is prime.at n=37A093807
• Palindromic Smith numbers.at n=17A098834
• Ulam's spiral (ENE spoke).at n=39A143856
• a(n) = p(n)*p(n+2) - 3*p(n+1), where p(n) is the n-th prime.at n=35A152528
• The number of plain lambda terms presented by de Bruijn indices, see Bendkowski et al., where zeros have no weight.at n=7A258973
• Number of 4 X n binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.at n=31A266937
• Palindromes (A002113) in A157037.at n=38A353703