112211

Appears in sequences

• a(n) = n^2 written in base 3.at n=20A001738
• Divide natural numbers in groups with prime(n) elements and add together.at n=25A034956
• Composite numbers whose prime factors contain no digits other than 0 and 1.at n=7A036928
• Palindromes with exactly 3 palindromic prime factors (counted with multiplicity).at n=24A046377
• In the array shown below the n-th row contains all the palindromes that use digits > 0 and have a digit sum of n. The sequence contains the array read by rows.at n=40A082266
• Palindromes in A083114.at n=41A083115
• Diagonal of A083464.at n=34A083465
• Palindromes formed from the concatenation of n, sum of n and R(n), and R(n) with its leading zeros; or 0 if no such palindrome exists. R(k) is the digit reversal of k.at n=10A084998
• Expansion of (1 + 11*x - 90*x^2 - 1100*x^3)/(1 - 201*x^2 + 10100*x^4).at n=5A097115
• Palindromes in base 3 (written in base 3).at n=40A118594
• Smallest n-digit number that has exactly n divisors, each with a different number of digits, or 0 if no such number exists.at n=5A125315
• Trajectory of 8 under iteration of the map k -> A087712(k).at n=4A144813
• 6-digit numbers k such that: (a) the digits of k are from the set {1, 2, 3, 4, 5}, and (b) any digit that appears in k appears at least twice.at n=20A171725
• Composite numbers whose product of digits is 4.at n=35A201016
• Dates after Jan 01 00 in chronological order which are palindromic when they are written according to the format MMDDYY (American standard, short). Leading zeros of the terms are suppressed.at n=5A210895
• List of subwords (or factors) of the Thue-Morse "1,2"-word A001285.at n=35A214215
• Composite numbers n such that largest digit of all divisors of n is 2.at n=10A221698
• Zeroless numbers n such that n and n*product_of_digits(n) are both palindromes.at n=21A229804
• Elements of the Motzkin words sub-operad Motz of TN generated by 00 and 010.at n=23A231872
• List of privileged words over the alphabet {1,2}.at n=21A235609