121220100

Appears in sequences

• Squares whose decimal expansion digits occur with an exact frequency of 3.at n=4A052096
• Squares in every base >=3 (involving no carries and no digit apart from 0, 1 and 2).at n=21A066139
• Squares whose largest decimal digit is 2.at n=17A277946
• Squares whose arithmetic mean of digits is 1 (i.e., the sum of digits equals the number of digits).at n=14A316481
• Squares using only decimal digits 0,1,2,3.at n=34A331543