10000200001
domain: N
Appears in sequences
- Palindromic squares.at n=31A002779
- Strobogrammatic squares: the same upside down (calculator-style numerals).at n=12A018849
- Palindromic squares with an odd number of digits.at n=29A028817
- a(n) = (10^n + 1)^2.at n=5A033934
- Palindromes whose square root is a palindrome.at n=22A057136
- Squares composed of digits {0,1,2}, not ending with zero.at n=11A058412
- a(1) = 1; a(n+1) = smallest square > a(n) with leading digit equal to final digit of a(n) and final digit not 0.at n=19A061449
- Squares in every base >=3 (involving no carries and no digit apart from 0, 1 and 2).at n=23A066139
- a(1) = 1; a(n) = smallest nontrivial n-digit perfect power.at n=10A069658
- Smallest nontrivial (no trailing zeros) n-digit square with minimum digit sum.at n=10A069667
- Largest nontrivial (no trailing zeros) n-digit square with minimum digit sum.at n=10A069668
- Smallest n-digit palindromic multiple of n, or 0 if no such number exists.at n=10A083123
- Smallest n-digit palindromic multiple of n. For n = 10k it is sufficient that the multiple is palindromic with leading zeros ignored. 0 if no such number exists.at n=10A084013
- Squares of A057148 taken as decimal numbers.at n=11A176923
- a(n) = the smallest n-digit number with exactly 9 divisors, a(n) = 0 if no such number exists.at n=10A182677
- Palindromic squares whose sum of digits is also a palindromic square.at n=9A225739
- Numbers k whose base-10 digits can be split into two parts, q and r, with k = (q-r)^2.at n=18A228103
- Let x(1)x(2)... x(q) denote the decimal expansion of a number n with q odd. The sequence lists the squares n such that the central digit equals the sum of the other digits.at n=18A236181
- Palindromes which are base-3 representations of squares.at n=16A263608
- Palindromes in base 4 which are also squares.at n=12A263610