A365407 Decimal expansion of alpha/Pi, where alpha is the fine-structure constant.

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

Offset

0,3

Comments

Very close to the value of the electron g-2 factor (i.e., the electron g factor minus 2) which is 0.00231930436..., so the absolute difference with this constant is approximately 0.0000035151.

Also very close to the value of the muon g-2 factor (i.e., the muon g factor minus 2) which is 0.0023318418..., so the absolute difference with this constant is approximately 0.00000902234.

Links

Table of n, a(n) for n=0..10.

NIST, CODATA Fundamental Physical Constants, electron g factor

NIST, CODATA Fundamental Physical Constants, muon g factor

StackExchange, Relationship between electron g value and fine structure constant from QED

Formula

Equals A003673/A000796.

Example

0.00232281946...

Crossrefs

Cf. A000796, A003673, A195022, A327950.

Sequence in context: A154179 A300862 A151863 * A366782 A134142 A353390

Adjacent sequences: A365404 A365405 A365406 * A365408 A365409 A365410

Keyword

nonn,cons,more

Author

Omar E. Pol, Sep 25 2023

Status

approved