121022001

Appears in sequences

• Squares whose decimal expansion digits occur with an exact frequency of 3.at n=3A052096
• Squares composed of digits {0,1,2}, not ending with zero.at n=9A058412
• Write n in binary then square as if written in base 10.at n=25A063009
• Squares in every base >=3 (involving no carries and no digit apart from 0, 1 and 2).at n=20A066139
• Squares whose digital rotation is also a square.at n=16A275028
• Squares whose largest decimal digit is 2.at n=16A277946
• Squares whose arithmetic mean of digits is 1 (i.e., the sum of digits equals the number of digits).at n=13A316481
• Squares using only decimal digits 0,1,2,3.at n=33A331543
• Squares k that are not divisible by 10, and whose reverse and digit sum are also squares, such that the digit sum divides both k and its reverse.at n=18A354078