29923domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(207).at n=12A041385a(n) equals the (n*(n+1)/2)-th partial sum of the self-convolution cube of A010054, which has the g.f.: Sum_{k>=0} x^(k*(k+1)/2).at n=38A109414Numbers k such that k and k^2 use only the digits 2, 3, 5, 8 and 9.at n=10A137086