238165

Appears in sequences

• Numbers k such that the base-10 representation of k^2 has the structure dmdmd, where d is a single digit and m is a string of digits.at n=1A116501
• Numbers whose squares have 2R-1 digits, such that the number represented by leftmost R digits and number represented by rightmost R digits divide each other evenly.at n=33A216233
• Smallest number whose square has more than n digits and begins and ends with the same n digits.at n=5A230604
• Expansion of g.f. A(x) satisfying 3 = Sum_{n=-oo..+oo} (-1)^n * x^(2*n) * (3*A(x) + x^(n-2))^(n+1).at n=10A363108