A094560 - OEIS

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A094560

Initial decimal digit of Pi*n, Pi=3.1415...

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

a(n) = A000030(A022844(n)).

LINKS

Table of n, a(n) for n=1..102.

MATHEMATICA

Table[RealDigits[Pi n, 10, 20][[1, 1]], {n, 120}] (* Harvey P. Dale, Dec 31 2021 *)

PROG

(PARI) a(n) = digits(floor(n*Pi))[1]; \\ Michel Marcus, May 08 2016

CROSSREFS