A099298 Number of times the digit 7 appears in the first 10^n digits of Pi.

0, 8, 95, 970, 10025, 99800, 1000207, 9999610, 99996061, 1000041330, 10000084530, 99999818723

Offset

1,2

References

Alfred S. Posamentier & Ingmar Lehmann, A Biography of the World's Most Mysterious Number, Prometheus Books, Amherst, NY 2004, page 129.

Links

Table of n, a(n) for n=1..12.

Kanada Laboratory, Statistical Distribution Information.

Eric Weisstein's World of Mathematics, Pi Digits

Mathematica

$MaxPrecision = 1100000; dp = Drop[ RealDigits[Pi, 10, 1000010] [[1]], 1]; Table[ Count[ Take[dp, 10^n], 7], {n, 6}]

Crossrefs

Cf. A099291, A099292, A099293, A099294, A099295, A099296, A099297, A099299, A099300.

Sequence in context: A298887 A298659 A299611 * A182648 A003775 A262737

Adjacent sequences: A099295 A099296 A099297 * A099299 A099300 A099301

Keyword

nonn,base

Author

Robert G. Wilson v, Oct 11 2004

Status

approved