A331697 Squared numerator of y-coordinate of 3rd point of the n-th triangle with integer sides in a sorted list corresponding to A331695. The y-coordinate is given by sqrt(a(n))/A331696(n).

3, 15, 3, 7, 35, 32, 27, 135, 5, 63, 15, 495, 12, 11, 231, 144, 39, 99, 96, 819, 336, 75, 455, 7, 39, 56, 175, 16, 143, 35, 135, 128, 2975, 27, 15, 675, 384, 51, 495, 320, 2295, 864, 95, 195, 192, 1683, 720, 4275, 1440, 147, 1071, 9, 935, 135, 3591, 20, 663, 27

Offset

1,1

Links

Table of n, a(n) for n=1..58.

Example

a(1) = 3 because the 3rd point of the smallest triangle with integer sides (1,1,1) is at (x,y)=(1/2,sqrt(3)/2), A331695(1)=1, A331696(1)=2.
See A331695 for an extended list.

Crossrefs

Cf. A316841.

Sides of triangle: A316843, A316844, A316845.

Cf. A331695, A331696.

Sequence in context: A096682 A371099 A331228 * A331225 A331223 A370538

Adjacent sequences: A331694 A331695 A331696 * A331698 A331699 A331700

Keyword

nonn

Author

Hugo Pfoertner, Jan 25 2020

Status

approved