A272873 - OEIS

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A272873

Decimal expansion of the quadratic mean of 1 and Pi.

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

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OFFSET

1,1

COMMENTS

Quadratic mean (also known as the root mean square, rms) of two numbers x and y, is the Hoelder mean H(x,y,p) = ((x^2+y^2)/2)^(1/p) with p = 2.

LINKS

Stanislav Sykora, Table of n, a(n) for n = 1..1000

Wikipedia, Generalized mean

Index entries for transcendental numbers

FORMULA

Equals sqrt((1+Pi^2)/2).

EXAMPLE