A195367 Decimal expansion of shortest length, (C), of segment from side CA through incenter to side CB in right triangle ABC with sidelengths (a,b,c)=(sqrt(2),sqrt(3),sqrt(5)).

1, 2, 8, 7, 2, 1, 2, 0, 8, 2, 6, 1, 4, 7, 9, 8, 7, 6, 6, 1, 9, 8, 3, 9, 0, 5, 3, 0, 2, 7, 3, 1, 7, 2, 8, 5, 8, 2, 4, 6, 3, 9, 2, 3, 4, 1, 3, 3, 1, 4, 5, 3, 3, 0, 1, 5, 7, 5, 1, 8, 7, 7, 1, 4, 4, 5, 8, 3, 6, 5, 9, 3, 8, 8, 1, 8, 0, 7, 6, 8, 0, 5, 1, 9, 5, 6, 1, 1, 3, 2, 4, 7, 2, 5, 3, 3, 9, 9, 3, 9

Offset

1,2

Comments

See A195284 for definitions and a general discussion.

Links

G. C. Greubel, Table of n, a(n) for n = 1..10000

Example

(C)=1.2872120826147987661983905302731728582463923413314...

Mathematica

a = Sqrt[2]; b = Sqrt[3]; c = Sqrt[5];
f = 2 a*b/(a + b + c);
x1 = Simplify[f*Sqrt[a^2 + (b + c)^2]/(b + c) ]
x2 = Simplify[f*Sqrt[b^2 + (c + a)^2]/(c + a) ]
x3 = f*Sqrt[2]
N[x1, 100]
RealDigits[%]    (* (A) A195365 *)
N[x2, 100]
RealDigits[%]    (* (B) A195366 *)
N[x3, 100]
RealDigits[%]    (* (C) A195367 *)
N[(x1 + x2 + x3)/(a + b + c), 100]
RealDigits[%]    (* Philo(ABC, I) A195368 *)

Crossrefs

Cf. A195284.

Sequence in context: A278808 A323459 A282089 * A135725 A265295 A093624

Adjacent sequences: A195364 A195365 A195366 * A195368 A195369 A195370

Keyword

nonn,cons

Author

Clark Kimberling, Sep 16 2011

Status

approved