184041

Appears in sequences

• Squares of Catalan numbers.at n=7A001246
• a(n) = C(floor(n/2 + 1/2))*C(floor(n/2 + 1)) where C(i) = Catalan numbers A000108.at n=13A005817
• a(n) = (12*n + 9)^2.at n=35A017630
• Numerators of coefficients of EllipticK/Pi.at n=7A038534
• Duplicate of A038534.at n=7A048056
• a(n) = A005130(n)^2.at n=5A049503
• a(n) = A002596(n)^2.at n=8A056981
• Largest square <= binomial(2n,n).at n=10A065738
• Coefficients of power series A(x) consist entirely of squares, where A(x) = A083352(x)^2 + A083352(x) - 1.at n=28A083353
• a(n+1) is the smallest square > a(n) such that every concatenation (n > 1) is a prime.at n=10A087352
• a(1) = 1, then least square such that every partial concatenation is a prime.at n=28A090257
• Numerators of ratio of sides of n-th triple of rectangles of unit area sum around a triangle.at n=14A094083
• Smith square numbers.at n=12A098839
• a(n) = (1/(1!*2!*3!*4!))*Sum_{1 <= x_1, x_2, x_3, x_4 <= n} |det V(x_1,x_2,x_3,x_4)|, where V(x_1,x_2,x_3,x_4) is the Vandermonde matrix of order 4.at n=11A133111
• Moves to permute (ufl,ubr)(dfr,dbl) corners in a 3 X 3 X 3 Rubik's Cube.at n=1A135825
• Moves to permute (ufl,ubr)(dfr,dbl) corners in a 3 X 3 X 3 Rubik's Cube.at n=4A135825
• Squares k such that k - 2 and k + 2 are prime.at n=11A144938
• Duplicate of A001246.at n=7A151342
• Perfect squares which can be written in all the four forms a^2+b^2, a^2+2*b^2, a^2+3*b^2 and a^2+7*b^2, with a > 0 and b > 0.at n=43A216682
• Squares which are a decimal concatenation of triprimes.at n=29A225151