A196737 - OEIS

A196737

Decimal expansion of (4*Pi^2)/sqrt(35) = A212002/A010490.

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

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OFFSET

1,1

COMMENTS

This sequence is exactly equal to (Pi*h)/Spin(5/2), where h = Planck's Constant = A003676 and Spin(n/2) = h/(4*Pi) * sqrt(n(n+2)) = A003676/(10*A019694) * sqrt(A005563(n)).

LINKS

Table of n, a(n) for n=1..81.

Wikipedia, Spin (physics)

EXAMPLE

6.673070521654371272396016391388419924371668300691857264579256516590541...

MATHEMATICA

RealDigits[(4Pi^2)/Sqrt[35], 10, 120][[1]] (* Harvey P. Dale, Jan 26 2021 *)

CROSSREFS

Cf. A212002, A010490.

Sequence in context: A375640 A247253 A244293 * A070058 A160057 A190145

Adjacent sequences: A196734 A196735 A196736 * A196738 A196739 A196740

KEYWORD

nonn,cons,easy

AUTHOR

Raphie Frank, Dec 21 2012

STATUS

approved