11211211

Appears in sequences

• Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 1,1,2.at n=7A037535
• Dates after Jan 01 1000 which are palindromic when they are written according to the ISO-8601-format YYYYMMDD.at n=16A210884
• Dates after Jan 01 1000 in chronological order which are palindromic when they are written according to the format MMDDYYYY (American standard). Leading zeros of the terms are suppressed.at n=26A210893
• List of minimal forbidden subwords of the Fibonacci word A003482.at n=3A214216
• Zeroless numbers n such that n and n*product_of_digits(n) are both palindromes.at n=34A229804