94249

Appears in sequences

• Palindromic squares.at n=13A002779
• a(n) = (11*n + 10)^2.at n=27A017510
• a(n) = (12*n + 7)^2.at n=25A017606
• Strong pseudoprimes to base 40.at n=32A020266
• Palindromic squares with an odd number of digits.at n=12A028817
• Palindromic squares with odd number of digits and non-palindromic and "non-core" square roots.at n=2A028818
• Palindromes whose sum of divisors is odd.at n=16A028984
• a(n) = prime^2 and digits of prime do not appear in a(n).at n=13A030088
• Squares which when written backwards remain square (final 0's excluded).at n=27A033294
• Squares with initial digit '9'.at n=15A045793
• Economical palindromes.at n=5A047739
• Squares composed of digits {2,4,9}.at n=5A053925
• Powers of a prime lucky number (A031157) but excluding lucky numbers (A000959).at n=24A057609
• a(n) = n^4 - 2*n^3 + 3*n^2 - 2*n + 1, the Alexander polynomial for reef and granny knots.at n=18A058031
• Palindromic squares of sporadic type.at n=2A059745
• Numbers n such that sigma(d(n^3))==d(sigma(n^2)), where d(n) is the number of divisors of n.at n=21A063797
• Palindromic squares with a prime root.at n=4A065379
• Palindromic powers (with positive exponents) of a prime but not a prime (A025475).at n=8A072037
• Palindromic perfect powers.at n=15A075786
• Palindromic prime powers of prime numbers.at n=7A076703