160225
domain: N
Appears in sequences
- Smallest number that is the sum of 2 squares (allowing zeros) in exactly n ways.at n=11A000446
- Smallest number that is the sum of 2 squares in at least n ways.at n=10A000448
- Smallest number that is the sum of 2 squares in at least n ways.at n=11A000448
- a(n) is the smallest number greater than a(n-1) that is expressible as the sum of two squares in more ways than a(n-1).at n=8A007511
- Least positive integer that is the sum of two squares of positive integers in exactly n ways.at n=11A016032
- Smallest k such that circle x^2 + y^2 = k passes through exactly 4n integer points.at n=23A018782
- Numbers that are the sum of 2 nonzero squares in 9 or more ways.at n=6A025300
- Numbers that are the sum of 2 nonzero squares in 10 or more ways.at n=1A025301
- Numbers that are the sum of 2 distinct nonzero squares in 9 or more ways.at n=6A025319
- Numbers that are the sum of 2 distinct nonzero squares in 10 or more ways.at n=1A025320
- Smallest number that is the sum of two positive squares in >= n ways.at n=10A048610
- Smallest number that is the sum of two positive squares in >= n ways.at n=11A048610
- Numbers that are expressible as the sum of 2 distinct positive squares in more ways than any smaller number.at n=9A052199
- Numbers of the form q1^b1 * q2^b2 * q3^b3 * q4^b4 * q5^b5 * ... where q1=5, q2=13, q3=17, q4=29, q5=37, ... (A002144) and b1 >= b2 >= b3 >= b4 >= b5 >= ....at n=22A054994
- a(n) = (2*n - 1)*(7*n^2 - 7*n + 3)/3.at n=32A063494
- Squared radii of the circles around (0,0) that contain record numbers of lattice points.at n=12A071383
- Lowest numbers which are d-Pythagorean decomposable, i.e., square is expressible as sum of two positive squares in more ways than for any smaller number.at n=9A088959
- Least number which is the sum of two distinct nonzero squares in exactly n ways.at n=11A093195
- Numbers k that are the hypotenuse of exactly 67 distinct integer-sided right triangles, i.e., k^2 can be written as a sum of two squares in 67 ways.at n=0A097626
- Table read by antidiagonals of least integer "mod 4 prime signatures" k ordered by number of primitive Pythagorean triples with hypotenuse = k.at n=19A097754