10458821

Appears in sequences

• Appending a digit to n^2 gives another perfect square.at n=31A031150
• Numerators in convergents to infinitely repeating period 3 palindromic continued fraction [1,2,1,...].at n=27A179238
• Numbers m such that 10*m^2 + 6 is a square.at n=9A221874
• a(n) = 6*a(n-2) + a(n-4), where a(0) = 3, a(1) = 5, a(2) = 19, a(3) = 31.at n=17A228471
• Denominators of continued fraction convergents to sqrt(10)/2 = sqrt(5/2) = A020797 + 1.at n=27A295334