1120211

Properties

Appears in sequences

• a(n) = n^2 written in base 3.at n=34A001738
• Palindromic prime concatenated with next palindromic prime is a prime.at n=6A030462
• Palindromic primes containing at least one pair of consecutive equal digits.at n=22A050786
• Smallest sets of 3 consecutive palindromic primes (palprimes) in arithmetic progression. The first prime of each set is listed.at n=5A059120
• Smallest sets of 4 consecutive palindromic primes (palprimes) in arithmetic progression. The initial palindromic prime of each set is listed.at n=0A059121
• Palindromic primes with digit sum 8.at n=5A070249
• Palindromic primes with middle digit 0.at n=9A082435
• Smallest palindromic prime containing the n-th palindrome.at n=29A085054
• Smallest palindromic prime built using the palindromes with odd number of digits as central digits.at n=19A087364
• Palindromic primes that yield a prime when sandwiched between two 7's. (Prefixing and suffixing a 'seven' on both sides yields another pal prime).at n=23A088271
• Palindromic primes that yield a prime when sandwiched between two 9's.at n=27A088272
• Palindromic primes in base 4 (written in base 4).at n=19A117699
• Dihedral calculator primes: p, p upside down, p in a mirror, p upside-down-and-in-a-mirror are all primes.at n=34A134996
• Prime palindromic cyclops numbers.at n=9A136098
• Smallest palindromic prime containing the n-th palindrome as central digit(s), or 0 if no such prime exists.at n=29A195294
• Palindromic primes in the sense of A007500 with digits '0', '1' and '2' only.at n=23A199302
• Smallest starting palindromic prime for n consecutive palindromic primes in arithmetic progression.at n=1A229725
• Palindromic prime numbers == 8 (mod 9).at n=19A229881
• First prime in set of 4 palindromic primes in arithmetic progression ordered by the largest term in the progression.at n=6A244273
• Smallest palindromic prime by adding at least one digit to both the left and right of n.at n=12A256048