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A021141
Decimal expansion of 1/137.
1
0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7, 2, 9, 9, 2, 7, 0, 0, 7
OFFSET
0,3
COMMENTS
Until the middle of the 20th century, the so-called "fine structure constant", a most important dimensionless physical constant, was widely supposed to be exactly 1/137.
MATHEMATICA
PadLeft[First@ #, Abs@ Last@ # + Length@ First@ #] &@ RealDigits[N[1/137, 120]] (* Bruno Berselli, Jun 21 2016 *)
CROSSREFS
Sequence in context: A156547 A180872 A003673 * A246948 A364899 A248283
KEYWORD
nonn,cons,easy
STATUS
approved