54458

Appears in sequences

• Length of hypotenuse squared in right triangle formed by a prime spiral plotted in Cartesian coordinates.at n=38A048851
• a(n) = (n^5 + 145*n^4 + 905*n^3 + 155*n^2 + 594*n + 120)/120.at n=13A143060
• Numbers k such that (32*10^k + 319)/9 is prime.at n=20A293856
• a(n) is the number of 5 element sets of distinct integer-sided trapezoids whose base angles are 60 degrees that fill an equilateral triangular grid of side n units without partitioning a triangle into 3 element sets of trapezoids.at n=35A391452