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 A108535 Positions of balanced digits in the decimal expansion of Pi. 3
 5, 155, 173, 179, 210, 236, 253, 262, 274, 275, 293, 352, 353, 359, 390, 410, 468, 603, 636, 654, 661, 674, 696, 703, 723, 732, 764, 765, 766, 767, 780, 796, 804, 822, 836, 857, 875, 885, 897, 918, 924, 961, 981, 985, 995, 996, 1015, 1059, 1200, 1234, 1246 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Cf. A108533 (strong digits), A108534 (weak digits). In the decimal expansion of Pi, balanced digits are much more rare than weak or strong ones. LINKS MATHEMATICA re=RealDigits[N[Pi, 2900]][[1]]; b={}; Do[r=re[[n]]; If[r==(re[[n-1]]+re[[n+1]])/2, b=Append[b, r]], {n, 2, 2899}]; A108535=b CROSSREFS Cf. A108533, A108534. Sequence in context: A105230 A222768 A208578 * A015019 A225165 A151577 Adjacent sequences:  A108532 A108533 A108534 * A108536 A108537 A108538 KEYWORD nonn,base AUTHOR Zak Seidov, Jun 08 2005 STATUS approved

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Last modified May 25 00:47 EDT 2013. Contains 225631 sequences.