93139

Properties

Appears in sequences

• Number of bipartite partitions.at n=20A002764
• Lucky numbers that are both palindromic and prime.at n=13A031881
• Lesser of two consecutive palindromes, both of which are prime.at n=20A032593
• Palindromic primes whose sum of squared digits is also prime.at n=31A052035
• Palindromic primes with strictly decreasing digits up to the middle and then strictly increasing.at n=17A062352
• Palindromic primes with middle digit 1.at n=6A082436
• Smallest palindromic prime that ends (on the least significant side) in prime(n).at n=33A082625
• Smallest palindromic prime that ends (the least significant side) in (2n-1) the n-th odd number, or 0 if no such number exists, e.g., for 2n-1 = 10k + 5, k>0.at n=19A082626
• a(n) = smallest palindromic prime that begins with A082768(n), or 0 if no such number exists.at n=37A082769
• Palindromes that cannot be expressed as the difference of two palindromes.at n=14A083142
• Primes arising in A083996.at n=1A083997
• Least palindromic prime that strictly encloses the n-th palindromic prime, or 0 if no such prime exists.at n=10A084412
• Palindromic primes with nonincreasing digits up to the middle and then nondecreasing.at n=22A084837
• Smallest palindromic prime built using the palindromes with odd number of digits as central digits.at n=30A087364
• Palindromic primes p such that if each digit d is replaced by 10-d then the resulting palindrome is also a prime.at n=19A088092
• Palindromic primes that yield a prime when sandwiched between two 3's. (Prefixing and suffixing a -three' on both sides yields another pal prime).at n=34A088270
• Palindromic primes that yield a prime when sandwiched between two 9's.at n=22A088272
• Least palindromic prime beginning with A089743(n).at n=39A089744
• Palindromic primes pp such that 9876543210pp0123456789 is palindromic prime.at n=6A103834
• Palindromic primes that start and end with 9.at n=4A128375