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 A257858 An increasing sequence of integers for which the continued square root map (see A257574) produces the decimal expansion of Pi. 1
 6, 10, 19, 27, 29, 32, 42, 45, 56, 67, 75, 94, 109, 122, 138, 144, 151, 152, 172, 181, 194, 204, 205, 232, 256, 290, 316, 325, 346, 380, 412, 446, 478, 511, 520, 533, 580, 584, 617, 623, 654, 658, 661, 682, 734, 773, 823, 836, 865, 903, 954, 979, 997, 1008, 1059 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Chai Wah Wu, Table of n, a(n) for n = 1..1000 Popular Computing (Calabasas, CA), The CSR Function, Vol. 4 (No. 34, Jan 1976), pages PC34-10 to PC34-11. Annotated and scanned copy. Herman P. Robinson, The CSR Function, Popular Computing (Calabasas, CA), Vol. 4 (No. 35, Feb 1976), pages PC35-3 to PC35-4. Annotated and scanned copy. EXAMPLE sqrt(6) = 2.449489742783178 sqrt(6+sqrt(10)) = 3.0269254467476365 sqrt(6+sqrt(10+sqrt(19))) = 3.1287879095060176 sqrt(6+sqrt(10+sqrt(19+sqrt(27)))) = 3.140462825727146 sqrt(6+sqrt(10+sqrt(19+sqrt(27+sqrt(29))))) = 3.1414928066743406 CROSSREFS Cf. A257582, A257764, A257809. Sequence in context: A287273 A138828 A109312 * A095985 A270306 A327410 Adjacent sequences:  A257855 A257856 A257857 * A257859 A257860 A257861 KEYWORD nonn AUTHOR Chai Wah Wu, May 13 2015 STATUS approved

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Last modified September 16 07:19 EDT 2021. Contains 347469 sequences. (Running on oeis4.)