A014976 - OEIS

A014976

Successive locations of zeros in decimal expansion of Pi (where locations 1, 2, 3, ... correspond to digits 3, 1, 4, ...).

33, 51, 55, 66, 72, 78, 86, 98, 107, 117, 122, 129, 133, 147, 160, 165, 168, 177, 196, 208, 246, 249, 265, 271, 288, 292, 308, 309, 312, 328, 331, 341, 358, 361, 362, 367, 370, 376, 399, 404, 409, 422, 444, 452, 494, 514, 521, 524, 544, 546, 553, 558, 562, 597, 602, 603, 604, 619, 639, 658

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OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index entries for sequences related to the number Pi

FORMULA

a(n) = A037008(n) + 1. - Georg Fischer, May 31 2021

MAPLE

f := proc(n) if pi[n]=0 then n fi; end; [seq(f(i), i=1..2000)]; # where pi is an array with the digits of Pi. - Simon Plouffe [Corrected by Neven Juric, Jul 08 2008]

MATHEMATICA

Flatten[ Position[ RealDigits[Pi, 10, 660] [[1]], 0]] (* Robert G. Wilson v, Mar 19 2004 *)

PROG

(PARI) A014976_upto(N=999)={localprec(N+20); select(d->!d, digits(Pi\10^-N), 1)} \\ Returns a "Vecsmall": use Vec(...) if needed, or alternatively: {...; [i|i<-[1..#N=digits(Pi\10^-N)], !N[i]]}. - M. F. Hasler, Jul 28 2024

CROSSREFS

Cf. A000796 (decimal expansion (or digits) of Pi).

Cf. A053745 - A053753 (similar for digits 1 through 9).

Cf. A037008 for a variant with all values decreased by 1.

See A088563 for primes in this sequence.

Sequence in context: A349551 A204381 A034815 * A364286 A109407 A204374

Adjacent sequences: A014973 A014974 A014975 * A014977 A014978 A014979

KEYWORD

nonn,base

AUTHOR

Bagirath R. Krishnamachari (bagi(AT)callisto.miel.mot.com)

EXTENSIONS

More terms from Scott Lindhurst (ScottL(AT)alumni.princeton.edu)

STATUS

approved