120789085domain: NAppears in sequencesFibonacci sequence beginning 0, 5.at n=37A022088Sum of two consecutive squares of Lucas numbers (A001254).at n=18A106729Numerators of A178381(4*n+1)/A178381(4*n).at n=18A179131Rounded area of distinct right triangles appearing in the unit golden spiral.at n=38A221212