21307456

Appears in sequences

• Squares s such that first m and last m digits of the binary representation are perfect positive squares written in binary, and m = floor(binaryLength(s)/2), where binaryLength(s) = A070939(s) is the binary length of s.at n=10A226836
• Squares which have one or more occurrences of exactly eight different digits.at n=16A235723
• Squares such that any two consecutive decimal digits differ by 1 after arranging the digits in decreasing order.at n=13A370610