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 A099295 Number of times the digit 4 appears in the first 10^n digits of Pi. 11
 1, 10, 93, 1012, 9971, 100230, 1001093, 10003863, 100011958, 999937688, 10000032702, 100000357857 (list; graph; refs; listen; history; text; internal format)
 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 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], 4], {n, 6}] Module[{pid=RealDigits[Pi, 10, 10^7][[1]], ac}, ac=Accumulate[If[#==4, 1, 0]&/@pid]; Table[ac[[10^n]], {n, 7}]] (* Generates the first 7 terms of the sequence. *) (* Harvey P. Dale, Jan 07 2020 *) CROSSREFS Cf. A099291, A099292, A099293, A099294, A099296, A099297, A099298, A099299, A099300. Sequence in context: A103944 A190989 A224696 * A167589 A192899 A192900 Adjacent sequences:  A099292 A099293 A099294 * A099296 A099297 A099298 KEYWORD nonn,base AUTHOR Robert G. Wilson v, Oct 11 2004 STATUS approved

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Last modified October 29 15:24 EDT 2020. Contains 338066 sequences. (Running on oeis4.)