1022121

Appears in sequences

• a(n) = n^2 written in base 3.at n=31A001738
• Squares which when written backwards remain square (final 0's excluded).at n=33A033294
• Non-palindromic squares which when written backwards remain square (and still have the same number of digits).at n=18A035090
• n is odd and divisible by number of divisors of n and sum of digits of n.at n=16A057530
• Squares composed of digits {0,1,2}, not ending with zero.at n=5A058412
• Write n in binary then square as if written in base 10.at n=11A063009
• Squares k^2 such that reverse(k)^2 = reverse(k^2), excluding squares of palindromes.at n=16A064021
• Squares in every base >=3 (involving no carries and no digit apart from 0, 1 and 2).at n=10A066139
• Perfect powers not a multiple of 10 whose digit reversal is also a perfect power (not necessarily with the same exponent, but with exponent > 1).at n=36A110811
• Perfect squares with property that their digit reversal is a larger perfect square.at n=10A156316
• Numbers which are perfect squares and either form equal or larger perfect squares when reversed.at n=26A156317
• Non-palindromic squares whose digit reversal gives a square (possibly with fewer digits).at n=35A161902
• Perfect squares k such that each decimal digit of k is equal to the difference of at least two other digits of k.at n=17A255893
• Non-palindromic numbers n such that the square root of n multiplied by the reversal of n is a palindrome.at n=27A258382
• Squares whose digital rotation is also a square.at n=10A275028
• Squares whose largest decimal digit is 2.at n=6A277946
• Squares using only decimal digits 0,1,2,3.at n=14A331543
• Squares k that are not divisible by 10, and whose reverse and digit sum are also squares, such that the digit sum divides both k and its reverse.at n=10A354078