10200201

Appears in sequences

• Numbers k such that k^2 contains only digits {0,1,4}, not ending with zero.at n=25A058413
• a(1) = 1, a(n) = smallest palindrome not included earlier such that a(1)+...+a(n) is a palindrome.at n=55A073880
• Dates after Jan 01 1000 which are palindromic when they are written according to the ISO-8601-format YYYYMMDD.at n=3A210884
• Smallest palindrome of each distinct decimal type (A002113) in increasing order.at n=37A264406