A176458 - OEIS

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A176458

Decimal expansion of 4+sqrt(17).

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

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OFFSET

1,1

COMMENTS

Continued fraction expansion of 4+sqrt(17) is A010731.

This is the shape of an 8-extension rectangle; see A188640 for definitions. - Clark Kimberling, Apr 09 2011

LINKS

Table of n, a(n) for n=1..105.

Wikipedia, Metallic mean

Index entries for algebraic numbers, degree 2

FORMULA

a(n) = A010473(n) for n > 1.