121000000

Appears in sequences

• Squares whose consecutive digits vary by at most 1.at n=15A061850
• Write n in binary then square as if written in base 10.at n=24A063009
• Squares in every base >=3 (involving no carries and no digit apart from 0, 1 and 2).at n=19A066139
• Squares in which the neighboring digits differ at most by 1. Neighbors of 1 are 0 and 2, neighbors of 0 are 1 and 9.at n=18A087553
• Number of nX5 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.at n=19A207120
• Squares whose largest decimal digit is 2.at n=15A277946
• Squares using only decimal digits 0,1,2,3.at n=32A331543