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 A000209 Nearest integer to tan n. 2
 0, 2, -2, 0, 1, -3, 0, 1, -7, 0, 1, -226, -1, 0, 7, -1, 0, 3, -1, 0, 2, -2, 0, 2, -2, 0, 1, -3, 0, 1, -6, 0, 1, -75, -1, 0, 8, -1, 0, 4, -1, 0, 2, -1, 0, 2, -2, 0, 1, -3, 0, 1, -6, 0, 1, -45, -1, 0, 8, -1, 0, 4, -1, 0, 2, -1, 0, 2, -2, 0, 1, -3, 0, 1, -6, 0, 1, -32, -1, 0, 9, -1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS "At lunch one day, feeling even more ebullient than usual, he [Richard Feynman] challenged the table to a competition. He bet that he could solve any problem within sixty seconds, to within ten percent accuracy, that could be stated within ten seconds. ... Under pressure, his friends found themselves unable to stump him. ... Then Paul Olum spoke up. ... He demanded the tangent of ten to the hundredth. The competition was over. ... Even Feynman could not produce that on short notice." [James Gleick, Genius, Pantheon, NY, 1992, p. 178.] - N. J. A. Sloane, Jun 25 2018 LINKS N. J. A. Sloane, Table of n, a(n) for n = 0..20000 (first 1000 terms from T. D. Noe) MAPLE Digits := 100; f := n->round(evalf(tan(n))); [ seq(f(n), n=0..100) ]; MATHEMATICA Round[Tan[Range[0, 90]]] (* Harvey P. Dale, Aug 26 2013 *) CROSSREFS Sequence in context: A105524 A221459 A166387 * A359901 A170982 A296339 Adjacent sequences: A000206 A000207 A000208 * A000210 A000211 A000212 KEYWORD sign AUTHOR N. J. A. Sloane STATUS approved

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Last modified December 10 04:38 EST 2023. Contains 367699 sequences. (Running on oeis4.)