96721

Appears in sequences

• a(n) = (8*n + 7)^2.at n=38A017150
• a(n) = (10*n + 1)^2.at n=31A017282
• a(n) = (11*n + 3)^2.at n=28A017426
• a(n) = (12*n + 11)^2.at n=25A017654
• Squares which are palindromes in base 15.at n=19A030075
• Squares-of-primes in which no two adjacent digits have the same parity.at n=16A030146
• Squares in which parity of digits alternates.at n=38A030152
• Odd squares in which parity of digits alternates.at n=25A030156
• Squares which when written backwards remain square (final 0's excluded).at n=28A033294
• Non-palindromic squares which when written backwards remain square (and still have the same number of digits).at n=15A035090
• Squares with initial digit '9'.at n=19A045793
• Squares of 1 and primes, written backwards.at n=30A060998
• Numbers n such that sigma(d(n^3))==d(sigma(n^2)), where d(n) is the number of divisors of n.at n=22A063797
• Squares k^2 such that reverse(k)^2 = reverse(k^2), excluding squares of palindromes.at n=13A064021
• Numbers k such that sigma(k)*phi(k) is squarefree.at n=26A065299
• Numbers k such that sigma_4(k)/sigma_2(k) is prime.at n=19A066109
• a(n+1) is the smallest square > a(n) such that the digits of a(n) are all (with multiplicity) contained in the digits of a(n+1), with a(0)=1.at n=9A067713
• Largest n-digit square with property that digits alternate in parity, or 0 if no such number exists.at n=4A068881
• Squares with property that digits alternate in parity individually as well as in concatenation with previous terms.at n=17A068888
• Define sds(n) = sum of the squares of the digits of n. Sequence gives smaller of two consecutive squares with sds(k^2) = sds((k+1)^2).at n=5A069645