A298749 - OEIS

A298749

Decimal expansion of (1/2)(1 + sqrt(1 + 4*sqrt(5))).

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

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OFFSET

1,1

LINKS

Clark Kimberling, Table of n, a(n) for n = 1..10000

EXAMPLE

constant = 2.0767269825495438944... = positive zero of x^2 - x - sqrt(5).

MATHEMATICA

r = (1/2)*(1 + Sqrt[1 + 4 Sqrt[5]])

RealDigits[N[r, 100], 10][[1]]; (* A298749 *)

CROSSREFS

Cf. A275828, A298750, A298751, A298752.