24303

Appears in sequences

• Open 3-dimensional ball numbers (version 1): a(n) is the number of integer points (i,j,k) contained in an open ball of diameter n, centered at (0,0,0).at n=36A053592
• Number of solutions to x^2 + y^2 + z^2 < n^2; number of lattice points inside a sphere of radius n.at n=18A078183
• a(n) = 784*n - 1.at n=30A158399
• a(n) = n^3 - 3n^2 + 3.at n=30A177058
• Greatest number (in decimal representation) with n nonprime substrings in base-8 representation (substrings with leading zeros are considered to be nonprime).at n=2A217118
• Minimal natural number (in decimal representation) with n prime substrings in base-4 representation (substrings with leading zeros are considered to be nonprime).at n=20A217304
• Odd numbers n such that the sum of the binary digits of n and n^2 both equal 12.at n=23A261593
• Numbers k such that (82*10^k + 449)/9 is prime.at n=21A282809
• a(n) = 192*2^n - 273 (n>=1).at n=6A304516
• The number of edges on a concave circular triangle formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=12A340687
• Odd numbers m for which A379113(m^2) > 1, i.e., k = m^2 has a proper unitary divisor d > 1 such that A048720(A065621(sigma(d)),sigma(k/d)) is equal to sigma(k).at n=41A379122