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 A054249 Alternately subtract and add 1 to digits in decimal expansion of Pi. 0
 2, 2, 3, 2, 4, 10, 1, 7, 4, 4, 4, 9, 8, 8, 8, 4, 1, 4, 7, 5, 5, 3, 5, 5, 2, 4, 7, 4, 1, 8, 8, 6, -1, 3, 7, 9, 3, 2, 8, 8, 0, 7, 8, 4, 8, 10, 2, 8, 4, 2, -1, 6, 7, 3, -1, 10, 6, 5, 8, 5, 3, 6, 8, 3, 2, 1, 6, 9, 0, 7, 3, 1, 5, 3, 7, 7, 1, 1, 7, 10, 8, 9, 5, 3, 7, 1, 2, 5, 7, 3, 4, 4, 3, 3, 0, 2, 6, 1, 5, 8, 8 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS R. K. Hoeflin, Ultra Test EXAMPLE a(1)= 3 - 1 = 2, a(2)= 1 + 1 = 2, a(3) = 4 - 1 = 3 MATHEMATICA Total/@Partition[Riffle[RealDigits[Pi, 10, 120][[1]], {-1, 1}, {2, -1, 2}], 2] (* Harvey P. Dale, Jan 20 2016 *) CROSSREFS Sequence in context: A053023 A153725 A102247 * A160273 A141822 A033099 Adjacent sequences:  A054246 A054247 A054248 * A054250 A054251 A054252 KEYWORD easy,sign,base AUTHOR Anonymous, Feb 13 2000 EXTENSIONS More terms from James A. Sellers, Feb 22 2000 STATUS approved

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Last modified August 13 00:27 EDT 2020. Contains 336441 sequences. (Running on oeis4.)