474721

Appears in sequences

• Odd squares in which parity of digits alternates.at n=32A030156
• Indices of 9-gonal numbers that are also square.at n=8A048910
• (Terms in A014738)/4.at n=25A051515
• Let k be the least integer such that n^2 + Sum_{m=1..k} m^2 is a perfect square, then a(n) is the resulting square.at n=11A065611
• Squares with property that digits alternate in parity individually as well as in concatenation with previous terms.at n=24A068888
• T(n,k)=Number of nXk 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally.at n=29A232149
• Number of 2 X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally.at n=6A232150
• a(n) is the start of the first occurrence of n consecutive perfect powers, all of which are squares with exponents equal to 2 (A111245).at n=13A340661