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A223855 Decimal representation of continued fraction phi(1), phi(2), phi(3), phi(4), ... 4
1, 7, 1, 0, 1, 1, 3, 5, 2, 9, 7, 9, 9, 2, 5, 6, 4, 3, 3, 4, 9, 6, 6, 8, 2, 5, 7, 8, 9, 2, 7, 5, 7, 1, 4, 3, 7, 2, 4, 7, 0, 1, 1, 1, 0, 7, 8, 0, 0, 0, 6, 1, 5, 9, 6, 2, 0, 2, 6, 8, 3, 8, 7, 4, 6, 8, 4, 3, 5, 7, 2, 8, 9, 0, 8, 6, 1, 5, 0, 5, 3, 6, 2, 9, 3, 7, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Paolo P. Lava, Table of n, a(n) for n = 1..1000

EXAMPLE

1.710113529799256433496682578927...

= [1, 1, 2, 2, 4, 2, 6, 4, 6, 4, 10, 4, 12, 6, 8, ...]

MAPLE

with(numtheory);

A223855:=proc(q) local a, n; a:=phi(q+1);

for n from q by -1 to 1 do a:=1/a+phi(n); od; print(evalf(a, 100)); end:

A223855(10^5);

MATHEMATICA

digits = 100; ContinuedFraction[Table[EulerPhi[n], {n, 1, digits}]] // Flatten // FromContinuedFraction // RealDigits[#, 10, digits]& // First (* Jean-Fran├žois Alcover, Feb 24 2014 *)

CROSSREFS

Cf. A000010, A223854, A223856.

Sequence in context: A271697 A226371 A298937 * A289481 A229819 A194655

Adjacent sequences:  A223852 A223853 A223854 * A223856 A223857 A223858

KEYWORD

nonn,cons

AUTHOR

Paolo P. Lava, Mar 28 2013

STATUS

approved

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Last modified January 28 22:40 EST 2020. Contains 331328 sequences. (Running on oeis4.)