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 A134734 First differences of A084662. 9
 2, 3, 1, 5, 3, 1, 1, 1, 1, 11, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 47, 3, 1, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 101, 3, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES Eric S. Rowland, A simple prime-generating recurrence, Abstracts Amer. Math. Soc., 29 (No. 1, 2008), p. 50 (Abstract 1035-11-986). LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 Eric S. Rowland, A simple prime-generating recurrence, arXiv:0710.3217 [math.NT], 2007-2008. FORMULA a(n) = A132199(n), n > 2. - R. J. Mathar, Mar 28 2012 MATHEMATICA b[1] = 4; b[n_] := b[n] = b[n-1] + GCD[n, b[n-1]]; Table[b[n], {n, 104}] // Differences (* Jean-François Alcover, Sep 28 2018 *) PROG (Haskell) a134734 n = a134734_list !! (n-1) a134734_list = zipWith (-) (tail a084662_list) a084662_list -- Reinhard Zumkeller, Nov 15 2013 CROSSREFS See A106108 for other cross-references. Cf. A132199, A134743, A134744. Sequence in context: A138798 A277708 A261555 * A214569 A263409 A047706 Adjacent sequences:  A134731 A134732 A134733 * A134735 A134736 A134737 KEYWORD nonn AUTHOR N. J. A. Sloane, Jan 28 2008 STATUS approved

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Last modified December 12 00:07 EST 2018. Contains 318052 sequences. (Running on oeis4.)