1281424

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=7A226836
• Squares whose digits are powers of 2.at n=21A272884
• Perfect powers whose digits are all powers of the same single-digit base.at n=26A385351