87 is carréphylic - approach of √87 ~ 9.3273790531

Subsequent approximations of √87 - the position of a fraction indicates whether it is over or under the root-value.
1012345678919282612893173453734014294574855131054156714616...
0111111111123283134374043464952551131681567...

Diophantine equation:s2-87p2 = 1
d = distance to nearest square N2:+6
Smallest non-trivial s:(2*81+6)/6rational: 28actual: 28⇒ F=56
Smallest non-trivial p:2*9/6rational: 13actual: 3⇒ primus foldage=3
v-value qt-blocks:92-87*12:-6
Number of series:12

Cross multiplying the red-green pairs renders subsequent solutions of the diophantine equation.
s1281567...
p03168...

In the numerator:U(1,28)56=1/2*U(2,56)56-half the secundus of 56.
In the denominator:U(0,3)56=3*U(0,1)56-the 3-fold primus of 56.
as well as ...
In the numerator:U(0,261)56=261*U(0,1)56-the 87*3-fold primus of 56.
In the denominator:U(1,28)56=1/2*U(2,56)56-half the secundus of 56.
and ...
In the numerator:U(-9,9)56=9*U(-1,1)56-the 9-fold quartus of 56.
In the denominator:U(1,1)56=-the tertius of 56.


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31323334353738394041424344454647485051525354555657
58596061626365666768697071727374757677787980828384
858687888990919293949596979899101102103104105106107108109110